Mechanical & Mechatronic Engineering
Welcome to Stellenbosch University

Prof Theo von Backström

​​​

​​Senior Researcher and Emeritus Professor: Thermo-Fluid Division





​​Personal Details

Name: Theodor Willem von Backström

Date of Birth: 1945.02.14

Marital Status: Married, 3 children


ORCID iD is 0000-0003-2580-3128


Academic Qualifications

B.Sc. Eng. (Mech.), cum laude, Pretoria, 1967

M.Sc. Eng. (Mech.), Pretoria, 1971  (Part-time)

Ph.D. Eng. (Mech.), Stellenbosch, 1980  (Part-time)

D.Eng. Stellenbosch, 2012​

​​​Ph.D. and D.Eng.Dissertation titles​

"The Maximization of Pressure Recovery in Diffusers with Specific Inlet Conditions." (Promoter:  Prof. D.G. Kröger.)
“From turbo-machines to solar chimneys” (Promoter:  Prof. T.M. Harms)

Military Training

​Qualified as pilot in South African Air Force (Top Academic Student, 1963).
Member of 4 Squadron (Citizen's Force) 1965 to 1972. Highest rank:  Captain.​

​Membership of Professional Bodies

Fellow of the Aeronautical Society of South Africa, Reg. No. 1364216.
Honorary Fellow of the South African Institution of Mechanical Engineers, Reg. No. 221970.
Member of the South African Association for Applied and Theoretical Mechanics
Member of the Sustainable Energy Society of South Africa, Reg. No. 0310108.

Member of the American Society for Mechanical Engineers, Reg. No. 8807950​

​Professional Registration

Registered as a Professional Engineer with the Engineering Council of South Africa (1971-08-10, Registration number 710705).

Professional Experience

1968 - 1971:      Atomic Energy Board (Research scientist, Uranium enrichment separating element division)

1971 - 1983:      Uranium Enrichment Corporation
                           (Head:  Plant Fluid Mechanics;
                           Assistant Manager, Turbomachinery:  Responsible for aerodynamic design of uranium enrichment axial flow compressors.

                           Head:  Compressor acceptance test facility)
                           Attended three international courses on the design of turbomachinery​

1984 - 2006:      Professor, University of Stellenbosch.

                            Recent teaching duties have been in Fluid Dynamics (2nd and 3rd year), Fluid Machinery, Environmental Engineering, Communication, and Energy                                       Systems (4th year), Boundary Layers (Post graduate level) and Hydro Power Systems (Graduate level).  Has also taught Conceptual Design (2nd year),                                 Aerodynamics (4th year), and Gas Dynamics and Aircraft Propulsion (Graduate level).

                            2006 – present:  Senior Researcher, University of Stellenbosch

Consultant for inter alia:

Armscor, Bateman, CAE, Denel Aviation, Gerotek, GM, Howden Air Industries, Howden Safanco, IST, Kentron, North-West University, South African Chamber of Mines, Spoornet, Uranium Enrichment Corporation, Aerosud, M-Tech., Sasol, GEA.


Field of Speciality

Renewable Energy, Turbomachinery.​


Fields of Research

Renewable Energy, Turbomachinery.​


Additional University and other Appointments

Chairman, Department of Mechanical Engineering, (1986, 1992, 1996 – 1998, 2001‑2002)
Head:  Fluid Mechanics Division, (1984 – 1991, 1993 – 1995, 1998 – 2001)
Head:  Thermo-Fluids Division, (2004, 2005)


​Faculty Committees

Youth Scientists Organizing Committee (1985)
Research Advisory Committee (1986, 1997)
Curriculum Committee (1992, 1994, 1996-1998)
Strategic Planning Committee (1999, 2000)
Education (Onderrig) Committee (1999-2005)
Faculty representative:  E-campus forum
Faculty representative on Senate Research Subcommittee (2004, 2005).​


​​Departmental Committees and Appointments

Organiser:  Somchem Rockets Course (1984 – 1992)
Divisional Heads (1992 – 2001)
Management Committee (2002 – 2005).


Institute for Thermodynamics and Mechanics:​

Management Committee (1992 – 2005)
Director (1999 – 2000, 2003, 2005).​


​National Commissions

Engineering Council of SA:  Accreditation Commission for the following departments of Mechanical Engineering:


Natal University

1993
Rand Afrikaans University1996
University of Pretoria1997 (Team Leader)
Witwatersrand (Aerospace)1997 (Team Leader)
Rand Afrikaans University2001 (Team Leader)
Witwatersrand (Aerospace)2002 (Team Leader)​


​​Organising Committees

  • Chairman:  Organising committee for Third International Symposium on Computational Fluid Dynamics, Stellenbosch, 1993, also responsible for technical program.
  •  
  • Member:     Organizing Committee for South African Conference on Applied Mechanics (1998 and 2000).
  •  
  • Member:     Organizing Committee:  WWEA World Wind Energy Conference and Renewable Energy Exhibition, Cape Town, November 23-26, 2003.
  • Member:     International Scientific Advisory Board:  International Conference on Solar Updraft Tower Power Technology, SUTPT 2012, Wuhan, China October 2012

Sabbatical appointments​

  • Whittle Laboratory, Cambridge University – Visiting Scholar, July – Dec. 1988, Subject:  Computational fluid dynamics applied to turbomachinery.  Contacts:  Professors N.A. Cumpsty, J.D. Denton and Dr W.N. Dawes.
  • Turbomachinery Laboratory, Department of Aerospace Engineering, The Pennsylvania State University, PA – Adjunct Senior Scientist, March – Nov 1995, Subject:  Hydrodynamics of torque converters.  Contact:  Prof B. Lakshminarayana.
  • Turbo-propulsion Laboratory, Department of Aeronautics and Astronautics, Naval Postgraduate School.  Monterey CA – Visiting Professor, August to November 1999.  Subject:  Computational fluid dynamics applied to turbomachinery.  Contact: Prof G.V. Hobson.

National Research Foundation status

Rated researcher (B3)  (Evaluation submitted in February 2008)
Reviewer / Referee for evaluation of candidates.

Peer-reviewed Journal Papers

  1. Von Backström, T.W., Transonic compressor optimization by computational fluid dynamics.  Aeronautica Meridiana, Volume 8, pp. 85 – 96, July 1990.​
  2. Lewis, K.L., Von Backström, T.W., The experimental optimization of an annular dump diffuser.  SAIMechE. R&D Journal, Volume 7, No. 2, pp. 7 – 15, September 1991.
  3. Pool, C.H., Von Backström, T.W. and Du Toit, C.G., Tracking the canard tip vortices of a missile model.  Aeronautica Meridiana, Volume 9, pp. 23 – 44, 1991.
  4. Ras, M.C.D. and Von Backström, T.W., Required air velocity profiles for mist blowers.  Agricultural Engineering in S.A., Volume 22, No. 1, pp. 127 - 144, 1991.
  5. Ras, M.C.D. and Von Backström, T.W., The effect of tree structures on air velocity profiles from mist blowers.  Agricultural Engineering in South Africa, Volume 23, No. 1, pp. 362 – 372, 1991.
  6. Harms, T.M., Von Backström, T.W. and Du Plessis, J.P., A reformulation of the "SIMPLEN" algorithm to accommodate non-centralized interfaces.  Numerical Heat Transfer, Part B, Volume 20, No. 2, pp. 127 – 144, 1991.7.
  7. Harms, T.M., Von Backström, T.W. and Du Plessis, J.P., Derivation of a modified power-law approximation.  Numerical Heat Transfer, Part B, Volume 22, No. 2, pp. 235 – 241, 1992.
  8. Strachan, P.J., Reynaud, F.P. and Von Backström, T.W., The Hydrodynamic modelling of torque converters.  SAIMechE. R&D Journal, Volume 8, No. 1, pp. 21 – 28, 1992.
  9. Thiart, G.D., Von Backström, T.W., Numerical solution of flow through turbomachinery with the SIMPLEN algorithm.  SAIMechE. R&D Journal, Volume 8, No. 3, pp. 1 – 10, September 1992.
  10. Von Backström, T.W., Three-dimensional viscous flow through a highly loaded compressor rotor.  International Journal of Turbo and Jet Engines, Volume 9, No. 3, pp. 165 – 182, 1992.
  11. Basson, A.H., Von Backström, T.W. and Du Plessis, J.P., Numerical modelling of two-dimensional axial turbomachinery cascade flows.  Aeronautica Meridiana, Volume 10, pp. 115 – 127, 1992.
  12. Thiart, G.D. and Von Backström, T.W., Extension of the SIMPLEN algorithm differencing scheme to cylindrical polar coordinates, Numerical Heat Transfer, Part B, 23 (1), pp. 1 – 19, 1993.
  13. Thiart, G.D. and Von Backström, T.W., Numerical simulation of the flow field near an axial flow fan operating under distorted inflow conditions, Journal of Wind Engineering and Industrial Aerodynamics 45, (2), pp. 189 – 214, 1993.
  14. Sinclair, M., Von Backström, T.W. and Du Buisson, J.J., Heuristic methods for arranging blades to minimize rotor unbalance.  Engineering Optimization, Volume 22, pp. 19 – 26, 1993.
  15. Harms, T.M., Von Backström, T.W., du Plessis, J.P. and Toerien, L.M., Derivation of a modified hybrid approximation, AIAA Journal 32, (7), pp. 1541 ‑ 1543, July 1994.
  16. Venter, A.A. and Von Backström, T.W., Panel method prediction of flow through a torque converter turbine, SAIMechE R&D Journal 10, (2), pp. 31 ‑ 40, July 1994.
  17. ​Von Backström, T.W. and Du Buisson, J.J., Blade arrangement strategies for minimal rotor unbalance.  International Journal of Turbo and Jet-Engines, Volume 11, No. 2 – 3, pp. 193 – 200, January 1994.
  18. Von Backström, T.W. and Furstenberg, L., Solving laminar boundary layers as a sequence of Falkner-Skan flows.  International Journal of Mechanical Engineering Education, Volume 24, No. 3, pp. 172 – 182, 1996.
  19. Von Backström, T.W., Buys, J.D. and Stinnes, W.H., Minimization of the exit loss of a rotor-only axial fan, Engineering Optimization 26 (1), pp. 25 – 33, 1996.
  20. Von Backström, T.W. and Lakshminarayana, B., Perspective:  Fluid dynamics and performance of automotive torque converters:  An assessment.  ASME Journal of Fluids Engineering, Volume 118, pp. 665 – 676, July 1996.
  21. Von Backström, T.W. and Lakshminarayana, B., Fluid dynamics and performance of automotive torque converters:  An assessment.  American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED 238, pp. 573-582, 1996.
  22. Harms, T.M., Von Backström, T.W. and du Plessis, J.P., Simplified control Volume finite-element method, Numerical Heat Transfer, Part B, 30 (2), pp. 179 – 194, September 1996.
  23. Harms, T.M., Von Backström, T.W. and du Plessis, J.P., Comparison of three finite‑volume interpolation schemes.  SAIMechE R & D Journal, Volume 13, No. 1, pp. 20 – 30, March 1997.
  24. Roos, T.H., and Von Backström, T.W., Off-design low-speed NACA-65 loss and deflection correlation with low-Reynolds number correction for compressor through-flow analysis.  Aeronautica Meridiana, Volume 13, pp. 66-93, 1998.
  25. Wodrich, K.H.K. and Von Backström, T.W., A design programme for dilute phase pneumatic conveyers.  SAIMechE R&D Journal, Volume 14, No. 2, pp. 30 – 36, 1998.
  26. Von Backström, T.W. and Gannon, A.J., The solar chimney air standard thermodynamic cycle.  SAIMechE R&D Journal, Volume 16, No. 1, pp. 16 – 24, 2000.
  27. Gannon, A.J. and Von Backström, T.W., Comparison of streamline through-flow and streamline-curvature methods, International Journal of Turbo and Jet Engines, Volume 17 (2), pp.161 – 170, 2000.
  28. Gannon, A.J. and Von Backström, T.W., Solar chimney cycle analysis with system loss and solar collector performance, Journal of Solar Energy Engineering, Transactions of the ASME 122 (3), pp. 133 – 137, August 2000.
  29. Von Backström, T.W. and Gannon, A.J., Compressible flow through solar power plant chimneys, Journal of Solar Energy Engineering, Transactions of the ASME 122 (3), pp. 138 – 145, August 2000.
  30. Strachan, P.J. and Von Backström T.W., Velocity measurement in a hydrodynamic torque converter.  SAIMechE R&D Journal, Volume 16, pp. 62 ‑ 70, 2000.
  31. Vermeulen, M.O., Wessels, J.A. and Von Backstrom, T.W., The influence of upstream geometry on the activation pressure of free and restricted reed configurations, Journal of the Acoustical Society of America 107 (5 Pt.2), p. 2896, 2000.
  32. Stinnes, W.H. and Von Backström, T.W., Effect of cross-flow on the performance of air-cooled heat exchanger fans.  Applied Thermal Engineering, (22), pp. 1403 – 1415, 2002.
  33. Van der Spuy, S.J. and Von Backström, T.W., Performance of a low noise rotor-only axial fan designed for minimum exit kinetic energy, SAIMechE R&D Journal, Volume 18, No. 3, pp. 63 – 69, November 2002.
  34. Von Backström T.W., Calculation of pressure and density in solar power plant chimneys. ASME Journal of Solar Energy Engineering, Transactions of the ASME 125, (1), pp. 127 ‑ 129, February 2003 (Technical Brief).
  35. Gannon, A.J. and Von Backström, T.W., Solar chimney turbine performance. Journal of Solar Energy Engineering, Vol. 125, No. 1, pp. 101 ‑ 106, February 2003.
  36. Von Backström T.W., Bernhardt, A. and Gannon, A.J., Pressure drop in solar power plant chimneys.  Journal of Solar Energy Engineering, Transactions of the ASME 125 (2), pp. 165 ‑ 169, May 2003.
  37. Teetz, H.W., Harms, T.M. and Von Backström, T.W., Assessment of the wind power potential at SANAE IV base, Antarctica:  a technical and economical feasibility study.  Renewable Energy 28 (13), pp. 2037 – 2061, February 2003.
  38. Von Backström, T.W. and Gannon, A.J., Solar chimney turbine characteristics, Solar Energy 76, Special Proceedings Issue, (1 – 3), pp. 235 ‑ 241, January ‑ March 2004.
  39. Von Backström, T.W., Kirstein, C.F., Pillay, L.A., The influence of some secondary effects on solar chimney power plant performance, SAIMechE R&D Journal, 22 (1), pp. 5 – 10, 2006.
  40. Von Backström T.W., A unified correlation for slip factor in centrifugal impellers.  Journal of Turbomachinery 128, (1), pp. 1 – 10, Jan. 2006.
  41. Hotchkiss, P.J., Meyer, C.J. and Von Backström, T.W.  Numerical investigation into the effect of cross-flow on the performance of axial flow fans in forced draught air-cooled heat exchangers.  Applied Thermal Engineering 26, pp. 200 ‑ 208, Jan 2006.
  42. Von Backström, T.W. and Fluri, T.P., Maximum fluid power condition for solar chimney power plants – An Analytical Approach, Solar Energy, 80, pp. 1417 ‑ 1423, 2006.
  43. Kirstein, C.F., and Von Backström, T.W., Flow through a Solar Chimney power plant collector-to-chimney transition section, Journal of Solar Energy Engineering, Transactions of the ASME 128 (3), pp. 312 – 317, August 2006.
  44. Von Backström, T.W., A compact equation for the prediction eddy-induced slip in centrifugal impellers, Proceedings of the Institution of Mechanical Engineers, Part A:  Journal of Power and Energy 220 (8), pp 911 –915, 2006
  45. Von Backström, T.W., Relative-eddy induced slip in centrifugal impellers for engineering students, SAIMechE R&D Journal, 2007, 23 (1) of the South African Institution of Mechanical Engineering, pp. 21 – 27, 2007.
  46. Gill, A., Von Backström, T.W. and Harms, T.M., Fundmentals of four-quadrant axial flow compressor maps, Proceedings of the Institution of Mechanical Engineers, Part A:  Journal of Power and Energy 221 (7), pp. 1001 – 1010, 2007.
  47. Maneschijn, A., Jones, T, Von Backström, T.W. and Ingham, L.A., A proposed reference framework for unmanned aerial vehicle and system airworthiness requirements.  Aeronautical Journal, 111, (1120), pp. 345 – 358, June 2007. RAeS Bronze medal winner.
  48. Heise, R., Meyer, C.J. and von Backström, T.W., CFD simulation of helicopter flow fields using an actuator disk main rotor model, SAIMechE R&D Journal, 23 (3), pp. 24 –32, 2007.
  49. Loveday, H. N., Migeotte, G. and von Backström, T.W., The design of a hydrofoil system for sailing catamarans, SAIMechE R&D Journal, 2008, 24 (1), pp. 12-18.
  50. Fluri, T.P. and Von Backström, T.W., Comparison of modelling approaches and layouts for solar chimney turbines, Solar Energy 82 (3), pp. 239 – 246, 2008.
  51. Von Backström, T.W., Harte, R., Höffer, R., Krätzig, W.B., Kröger, D.G. Niemann, H.-J., van Zijl, G.P.A.G., State and recent advances in research and design of solar updraft power technology, VGB PowerTech, Vol. 88 (7), pp. 64 – 71 + 6, 2008.
  52. Fluri, T.P. and Von Backström, T.W., Performance analysis of the power conversion unit of a solar chimney power plant, Solar Energy 82 (11) pp. 999-1008, 2008.
  53. Fluri, T.P., Pretorius, J.P. Van Dyk, C., Von Backström, T.W., Kröger, D.G., Van Zijl, G.P.A.G., Cost analysis of solar chimney power plants, Solar Energy, Vol. 83, Issue 2, pp. 246 – 256, 2009.
  54. Bernardes, M.A. Dos S., Von Backström, T.W. and Kröger, D.G., Analysis of some available heat transfer coefficients applicable to solar chimney power plant collectors, Solar Energy 83 (2), pp. 264 – 273, 2009.
  55. Van der Spuy, S.J., Von Backström, T.W. and Kröger, D.G., Performance of low noise fans in power plant air cooled steam condensers, Noise Control Engineering, Journal 57,(4), pp. 341 – 347, July – August 2009.
  56. Heise, R. and Von Backström, T.W., System analysis and optimisation of the CIRSTEL tail boom, Journal of the American Helicopter Society 55 (1) 012000-1 – 012000-6, 2010.
  57. Bernardes, M.A. Dos S. and Von Backström T.W., Evaluation of Operational Control Strategies Applicable to Solar Chimney Power Plants.  Solar Energy (2) 84, 2010, 277-288.
  58. Van der Spuy, S.J., Von Backström, T.W. and Kröger, D.G., An evaluation of simplified methods to model the performance of axial flow fan arrays,  R&D Journal, 26 , pp.12-20, 2010
  59. Maneschijn A., Jones T., Von Backström T.W., An operability framework for unmanned aircraft systems, Aeronautical Journal, 2011, 115 : pp 361-376
  60. Gauché, P., Von Backström, T.W. and Brent, A.C. A concentrating solar power value proposition, Journal of Energy in Southern Africa, 24(1): 67-76, February 2013.
  61. Kotzé, J.P., Von Backström, T.W. and Erens, P.J.  High temperature thermal energy storage utilizing metallic phase change materials and metallic heat transfer fluids, ASME Journal of Solar Energy Engineering, 135 (2013).
  62. Allen, K.G., Von Backström, T.W. and Kröger, D.G. Packed bed pressure drop dependence on particle shape, size distribution, packing arrangement and roughness. Powder Technology, 246 (2013), 590-600.
  63. Raubenheimer, G.A., Van der Spuy, S.J. and Von Backström, T.W. , The use of air injection nozzles for the forced excitation of axial compressor blades, International Journal of Turbo and Jet Engines 2013, 30(1):  55 – 65.
  64. Pierce, W.T., Gauché, P., Von Backström, T.W., Brent, A.C., Tadros, A. ,  A comparison of Solar Aided Power Generation (SAPG) and stand-alone concentrating solar power (CSP):  A South African case study, Applied Thermal Engineering, 2013 (61): 657-662.
  65. Zhou, X, Von Backström, T.W., Dos Santos Bernardes, M.A. Introduction to the Special Issue on Solar Chimneys.  Solar Energy 2013, (98): 1.
  66. D.S. Krige, D.S., T. Von Backström, T.W. and Van der Spuy. S.J., Radial diffuser design in a micro gas turbine centrifugal compressor. International Journal of Turbo and Jet engines (Submitted for publication, 2013).
  67. Augustyn, O.P.H., Van der Spuy, SJ and Von Backström, TW, Performance investigation of a reverse-engineered axial flow fan by numerical simulation. Engineering Applications of Computational Fluid Mechanics (Submitted for publication, 2014).
  68. Van der Merwe, BB, Schreve, K, Van der Spuy, SJ and Von Backström, TW, Virtualisation and performance analysis of a small-scale centrifugal compressor impeller. International Journal of Computer Aided Engineering and Technology (Accepted for publication, 2014).
  69. Allen, K.G., Von Backström, T.W. and Kröger, D.G, and Kisters, A.F.M., Rock bed storage for solar thermal power plants: Rock characteristics, suitability, and availability. Solar Energy Materials & Solar Cells, 2014 (126: 170-183..
  70. Gill, A., Von Backström, T.W. and Harms, T.M., Flow fields in an axial flow compressor during four-quadrant operation, ASME Journal of Turbomachinery ASME Journal of  Turbomachinery, 2014 (136): 1-14.
  71. Gauché, P., Brent, A.C. and Von Backström, T.W., Concentrating solar power: Improving electricity cost and security of supply, and other economic benefits., Development Southern Africa 2014, (31):692-710.​

 72. ALLEN KG, VON BACKSTROM TW, KROGER DG. Rock bed pressure drop and heat transfer: Simple design correlations. Solar Energy 2015; 115:525-536.

 73. DUNN D, VON BACKSTROM TW, SNEDDEN G. An unsteady numerical analysis of a generic non-axisymmetric turbine endwall in a 1½ stage turbine test rig.                        Aeronautical Journal 2015; 119:1-11.

 74. FOURIE N, VAN DER SPUY SJ, VON BACKSTROM TW. Simulating the effect of wind on the performance of axial flow fans in air-cooled steam condenser systems.                Journal of Thermal Science and Engineering Applications 2015; 7(2):1-12.

 75. LOUW FG, VON BACKSTROM TW, VAN DER SPUY SJ. Lift and drag characteristics of an air-cooled heat exchanger axial flow fan. Journal of Fluids Engineering-                      Transactions of the Asme 2015; 137:1-9.

 76. VAN DER SPUY SJ, VON BACKSTROM TW. An evaluation of simplified CFD models applied to primeter fans in air-cooled steam condensers. Proceedings of the                    Institution of Mechanical Engineers Part A-Journal of Power and Energy 2015; IMechE 2015:1-20.

 77. ALLEN KG, HELLER LJ, VON BACKSTROM TW. Cost optimum parameter for rock bed thermal storage at 550-600 C: A parametric study. JOURNAL OF SOLAR ENERGY          ENGINEERING-TRANSACTIONS OF THE ASME 2016; 138:061004, 8pages.

 78. AUGUSTYN OPH, VAN DER SPUY SJ, VON BACKSTROM TW. Numerical and experimental investigation into the accuracy of the fan scaling laws applied to large                  diameter axial flow fans. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 2016; 1177:1-10.

 79. BROOKS MJ, VON BACKSTROM TW, VAN DYK EE. Performance characteristics of a perforated shadow band in the presence of cloud. SOLAR ENERGY 2016; 139:533-           546.

 80  VAN DER MERWE BB, VAN DER SPUY SJ, VON BACKSTROM TW, SCHREVE K. Reverse engineering and performance analysis of a small-scale centrifugal compressor           impeller. International Journal of Computer Aided Engineering and Technology 2016; 3:217-233.



Conference Proceedings

1.  Von Backström, T.W., Expendable turbojet compressor design, test and development.  Papers from the Eighth International Symposium on Air Breathing Engines,          Cincinnati, pp. 331 – 338, June 1987.

2.  Von Backström, T.W. and Du Buisson, J.J., Blade arrangement strategies for minimal rotor unbalance.  First South African Aeronautical Engineering Conference, 12          pages, May 1988.

3.  Rossouw, M.A​​., Von Backström, T.W. and Du Plessis, J.P., Finite difference prediction of time-dependent one-dimensional compressible flow.  Symposium on                       Computational Fluid Dynamics at the CSIR, 23 pages, November 1988.

4.  Harms, T.M., Du Plessis, J.P. and Von Backström, T.W., An extension of a two-dimensional SIMPLEN algorithm based on an orthogonal non-staggered grid from a            five to a nine node discretization scheme, 6th International Conference on Numerical Methods in Laminar and Turbulent Flow, Pineridge Press, Swansea, pp. 180 –          191, ISBN 0-906674-70-0, 11-15 July 1989.

5.  Lewis, K.L. and Von Backström, T.W., The optimization of a gas turbine annular dump diffuser, Second S.A. Aeronautical Engineering Conference, Pretoria, 15 pages,      January 1990.

6.  Pool, C.H., Von Backström, T.W., De Villiers, P.K. and Thiart, G.D., Die effek van vlerkpuntwerwels op die rolmomente uitgeoefen deur 'n missiel se stertvinne.                    Second S.A. Aeronautical Engineering Conference, 19 pages, January 1990.

7.  Thiart, G.D. and Von Backström, T.W., Solution of the Navier-Stokes equations for three-dimensional turbulent flow near a propeller with the SIMPLEN‑algorithm.             Second S.A. Aeronautical Engineering Conference, Pretoria, 10 pages, January 1990.

8.  Von Backström, T.W., Dawes and Denton codes applied to a transonic compressor rotor.  ASME 90‑GT‑304, Gas Turbine and Aero-engine Congress and Exposition,          Brussels, Belgium, June 1990.

9.  Thiart, G.D. and Von Backström, T.W., The SIMPLEN algorithm in cylindrical polar coordinates.  Second National Symposium on Computational Fluid Dynamics,                 Vereeniging, pp. 23 – 29, 24 ‑ 27 June 1991.

10. Von Backström, T.W., Thiart, G.D. en Bruneau, P.R.P., Shock capturing with the SIMPLEN algorithm.  Second national symposium on computational fluid dynamics,         Vereeniging, pp. 88 – 103, 24 - 27 June 1991.

11. Harms, T.M., Du Plessis, J.P. and Von Backström, T.W., A comparison of discretization options for the source term in the SIMPLEN interpolation equation.  Second             National Symposium on Computational Fluid Dynamics, Vereeniging, pp. 191 – 205, 24 ‑ 27 June 1991

12. Du Toit, C.G. and Von Backström, T.W., The numerical tracking of the canard tip vortices of a missile model.  Third S.A. Aeronautical Engineering Conference,                     Pretoria, August 1991.

13. Hattingh, H.V., Von Backström, T.W., Van Wyk, J.S. and Frauenstein, C.H.H., A tri-sonic cascade tunnel.  AIAA International Symposium on Air Breathing Engines,                Nottingham, UK, September 1991.

14. Harms, T.M., Von Backström, T.W. and Du Plessis, J.P.,  Towards a new control Volume method for non‑staggered and non‑orthogonal grids.  Proceedings of the              Third National Symposium on Computational Fluid Dynamics, Stellenbosch, pp. 111 – 126, June 1993.

15. Harms, T.M., Von Backström, T.W. and Du Plessis, J.P.,  Evaluation of full Navier‑stokes interpolation through direct discretization.  Proceedings of the Third National        Symposium on Computational Fluid Dynamics, Stellenbosch, pp. 97 ‑ 110, June 1993.

16. Von Backström, T.W., Thiart, G.D. and Höppe, K.G., Numerical prediction of the flow around a hydrofoil near a free surface.  Proceedings of the Third National                   Symposium on Computational Fluid Dynamics, Stellenbosch, pp. 301 – 311, June 1993.

17. Von Backström, T.W. and Roos, T.H., The streamline through-flow method for axial turbomachinery flow analysis.  Papers from the Eleventh International                          Symposium on Air Breathing Engines, Tokyo, Japan, pp. 347 – 354, September 1993.

18. Harms, T.M., Von Backström, T.W. and Du Plessis, J.P., Finite Volume turbulent flow calculations based on non-orthogonal physical grids.  Proceedings of the 13th             Symposium on Finite Element Methods, Cape Town, January 1995.

19. Roos, T.M., Von Backström, T.W. and Gannon, A.J., Calculation of the flow through an axial compressor by the streamline through-flow method.  Presented at the              SACAM96 Conference, Midrand, and pp. 80 – 86, July 1996.

20. Van der Merwe, J.C., Von Backström, T.W. and Harms, T.M., Flow calculation through a torque converter turbine.  Presented at the SACAM96 Conference, Midrand,            pp. 39 – 46, July 1996.

21. Von Backström, T.W. and Lakshminarayana, B.,  Perspective:  Fluid dynamics and performance of automotive torque converters:  An assessment, Journal of Fluids            Engineering, Transactions of the ASME 118, pp. 665 – 676, Division Summer Meeting, San Diego, CA, July 1996.

22. Wodrich, K.H.K and Von Backström, T.W., A design programme for dilute phase pneumatic conveyors.  International Materials Handling Conference '97, East Rand,          22 – 24 October 1997.

23. Gannon, A.J. and Von Backström, T.W., CFD as an alternative to axi-symmetric through-flow methods for turbomachinery.  Proceedings of the 2nd South African                Conference on Applied Mechanics, South Africa, University of Cape Town, Rondebosch, 13 – 15 January 1998.

24. Van der Merwe, D.J. and Von Backström, T.W., Supersonic viscous nozzle flow – comparison between a patching scheme and CFD.  Proceedings of the 2nd South               African Conference on Applied Mechanics, South Africa, University of Cape Town, Rondebosch, 13 – 15 January 1998.

25. Gannon, A.J. and Von Backström, T.W., A Comparison of the streamline through-flow and streamline-curvature methods for axial turbomachinery. ASME Paper               98‑GT‑48 presented at the International Gas Turbine & International Congress and Exhibition, Stockholm, Sweden, June 1998.

26. Gannon, A.J. and Von Backström, T.W., Solar chimney cycle analysis including losses and solar collector.  Performance proceedings of SACAM 2000, International             Conference on Applied Mechanics, Durban, 11 – 13 January 2000.

27. Von Backström, T.W., Van der Spuy, S.J. and Stinnes, W.H., The limiting efficiency of rotor-only fans and turbines.  Proceedings of SACAM 2000, International                     Conference on Applied Mechanics, Durban, 11 – 13 January 2000.

28. Von Backström, T.W. and Stinnes, W.H., The performance of axial fans subjected to forced cross-flow at inlet.  Proceedings of SACAM 2000, International Conference on Applied Mechanics, Durban, 11 – 13 January 2000

29. Vermeulen, M.O., Wessels, J.A. and Von Backström, T.W., The influence of upstream geometry on the activation pressure of free and restricted reed configurations:        139th Meeting of the Acoustical Society of America, Atlanta Georgia, USA, 30 May – 3 June 2000

30. Von Backström, T.W. and Gannon, A.J., Compressible flow through tall chimneys.  Proceedings of SOLAR 2000, Madison Wisconsin, 16 – 21 June 2000.

31. Gannon, A.J. and Von Backström, T.W.,  Solar chimney analysis including losses and solar collector performance, Proceedings of SOLAR 2000, Madison Wisconsin,           16 – 21 June 2000.

32. Von Backstrom, T.W., Hobson G.V., Grossman, B.L. and Shreeve, R.P., Investigation of the performance of a CFD-designed transonic compressor stage. Paper AiAA-         2000-3205, presented at the 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Huntsville Alabama, 17 – 19 July 2000.

33. Vermeulen M.O., Wessels, J.A. and Von Backström, T.W., The influence of upstream geometry on the activation pressure of free and restricted reed configurations:          3rd International Congress of the African Association of Physiological Sciences, Pretoria South Africa, 3 – 8 September 2000.

34. Von Backström, T.W. and Gannon, A.J., Preliminary investigation of pressure drop in solar power plant chimneys.  Western Cape Forum for Mechanical Engineering         Research Conference on Heat Transfer, Energy Conversion and Fluid Dynamics, 13 – 14 September 2001 (Keynote Address).

35. Gannon, A.J., and Von Backström, T.W., Solar chimney test rig.  Western Cape Forum for Mechanical Engineering Research Conference on Heat Transfer, Energy               Conversion and Fluid Dynamics, 13 – 14 September 2001.

36. Teetz, H.W., Harms, T.M. and Von Backström, T.W., Wind energy at SANAE IV Base – Antarctica.  Western Cape Forum for Mechanical Engineering Research                       Conference on Heat Transfer, Energy Conversion and Fluid Dynamics, 13 – 14 September 2001.

37. Von Backström T.W. and Gannon, A.J., Solar chimney turbine characteristics, International Solar Energy Society, 2001 Solar World Congress, ISES 2001, Adelaide,               November 2001.

38. Von Backström, T.W. and Stinnes W.H., Effect of cross-flow on the performance of axial fans, 12th IAHR Cooling Tower Symposium, Sydney, November 2001.

39. Von Backström T.W. and Gannon, A.J., Calculation of pressure and density in solar power plant chimneys.  HEFAT, Kruger Park, South Africa, April 2002.

40. Gannon, A.J., and Von Backström, T.W., Controlling and maximizing solar chimney power output.  HEFAT, Kruger Park, South Africa, April 2002.

41. Gannon, A.J., and Von Backström, T.W., Solar chimney turbine Part 1/2:  Design.  International Solar Energy Conference, Reno, Nevada, pp. 335 – 341, June 2002.

42. Gannon, A.J., and Von Backström, T.W., Solar chimney turbine Part 2/2: Experimental Results. International Solar Energy Conference, Reno, Nevada, pp. 343 -349,             June 2002.

43. Von Backström, T.W., Bernhardt, A. and Gannon, A.J., Pressure drop in solar power plant chimneys.  Proceedings of Solar 2002, Sunrise on the Reliable Energy                   Economy,  Paper 6/1-072, Reno, Nevada, pp. 319-323, June 2002.

44. Gannon, A.J., and  Von Backström, T.W., Solar Chimney Turbine Layout and Design Method, Proceedings of Solar 2002, Sunrise on the Reliable Energy Economy,                Paper 6/1-073, Reno, Nevada, USA, 15 – 20 June 2002.

45. Van der Spuy, S.J., Botha, W.J.C. and Von Backström, T.W., Optimising the Compressor Section of a Locomotive Turbocharger to Increase Engine Power Output,                 HEFAT 2003, 2nd International Conference on Heat Transfer, Fluid Mechanics, and Thermodynamics, Victoria Falls, Zambia, HR1, 24 – 26 June 2003.

46. Von Backström, T.W., Kirstein, C.F., Pillay, L.A., The influence of some secondary effects on solar chimney power plant performance, International Solar Energy                 Society, 2003 Solar World Congress, ISES 2003, Göteborg, Sweden, June 16 – 19, 2003.

47. Van der Spuy, S.J. and Von Backström, T.W., The simulation of a centrifugal compressor for a locomotive turbocharger using CFD.  SACAM 2004, University of                   Witwatersrand, Johannesburg, 18 – 21 January 2004.

48. Von Backström, T.W., Solar Power Generation, Annual Symposium 2004, National Association for Clean Air, Western Cape, "Towards Improved Air Quality", 20th May       2004.

49. Heise, R. and Von Backström, T.W., Design of intakes for an Internal Fan in a Helicopter Anti-Torque Tail Boom, HEFAT 2004, 3rd International Conference on Heat             Transfer, Fluid Mechanics, and Thermodynamics, Cape Town, HR1, 21 – 24 June 2004.

50. Pretorius, J.P., Kröger, D.G., Buys, J.D. and von Backström, T.W., Solar Tower Power Plant Performance Characteristics, EuroSun, The 5th ISES Europe Solar                           Conference, Freiburg, Germany, 20 – 23 June 2004.

51. Von Backström, T.W. and Fluri, T.P., Maximum Fluid Power Condition for Solar Chimney Power Plants – An Analytical Approach, EuroSun, The 5th ISES Europe Solar          Conference, Freiburg, Germany, (02) 1-968 – 1-977, 20 – 23 June 2004.

52. Kirstein, C.F., Von Backström, T.W. and Kröger, D.G., Flow through a Solar Tower Power Plant collector-to-chimney transition section, International Solar Energy               Congress, Orlando, Florida, U.S.A., pp. 713 – 719, 6 – 12 August 2005.

53. Heise, R. and Von Backström, T.W., System Analysis and Optimisation of the CIRSTEL Tail Boom, 31st European Rotorcraft Forum, Florence, Italy, pp. 13.1 ‑ 13.6, 13 –         15 September 2005.

54. Heise, R., Meyer, C.J. and Von Backström, T.W., Development of a method for CFD evaluation of helicopter fuselages, Presented at the ERF 2005, 31st European                  Rotorcraft Forum, Florence, Italy, pp. 012.1 ‑ 012.8, 13 – 15 September 2005.

55. Kirstein, C.F., Von Backström, T.W. and Kröger, D.G., Flow phenomena in the transition section of a solar chimney model, HEFAT 2005, 4th International Conference         on Heat Transfer, Fluid Mechanics, and Thermodynamics, Cairo, Egypt, 19 ‑ 22 September 2005.

56. Cencelli, N.A. and Von Backström, T.W., Aerodynamic optimisation of small-scale wind turbine blade for low windspeed conditions.  Presented at 5th South African            Conference on Computational and Applied Mechanics, SACAM 2006, pp. 177-185, Cape Town.

57. Fluri, T.P., Pretorius, J.P., Van Dyk, C., Von Backström, T.W., Kröger, D.G. and Van Zijl, G.P.A.G., Cost analysis of solar chimney power plants. Presented at EuroSun             Conference, Glasgow, UK, 2006.

58. Fluri, T.P. and Von Backström, T.W., Performance of the power conversion unit of a solar chimney power plant, Presented at the World Renewable Energy Congress       IX, Florence, Italy, pp. 1-6, 2006.

59. Fluri, T.P. and Von Backström, T.W., Turbogenerator concepts for solar chimney power plants, Presented at the World Renewable Energy Congress IX, Florence,               Italy, pp. 1-7, 2006.

60. Heise, R., Meyer C.J. and Von Backström, T.W., Evaluation of helicopter intakes in the presence of a rotor, Selected for publication as a technical paper in the Forum         Proceedings and presented at the 32nd European Rotorcraft Forum (ERF) scheduled for September 12-14, pp. 1-19, 2006, in Maastricht, the Netherlands.

61. Gill, A., von Backström, T.W. and Thiart, G.D., Comparison of Axial Flow Compressor Stall Prediction Criteria, Paper, ISABE 2007-1265, presented at 18th ISABE                      Conference, Beijing, China, 2-7 Sept. 2007.

62. Gill, A., Beviss-Challinor, L.M., Von Backström, T.W. and Harms, T.M., Four-quadrant total to static characteristics of an axial flow compressor.  Presented at Hefat              2007, 5th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 1-4 July 2007, Sun City, South Africa, 6 pp., Paper No. GA1, 2007.

63. Van der Spuy, S.J., Von Backström, T.W. and Kröger, D.G., Axial Fan Performance in Power Plant Air Cooled Steam Condensers.  Fan Noise 2007 Conference in Lyon,          France, 17 – 19 Sept. 2007.

64. Dos S. Bernardes, M.A., von Backström, T.W. and Kröger, D.G., Critical Evaluation of Heat Transfer Coefficients Applicable to Solar Chimney Power Plant Collectors,            Vol. IV, pp. 1706 – 1713, Proceedings of ISES World Congress 2007, Solar Energy and Human Settlement, September 18‑21, 2007, Beijing, China.

65. Van der Spuy, S.J., Von Backström, T.W. and Kröger, D.G., Simulation of a multiple fan installation using computational fluid dynamics, SACAM08, 6th South African            Conference on Computational and Applied Mechanics, Cape Town, pp 117-126, 26-28 March 2008.

66. Von Backström, T.W., The effect of specific heat ratio on the performance of compressible flow turbo-machines, ASME Turbo Expo 2008, 9-13 June 2008, Berlin,                  Germany.

67. Gill, A., von Backström, T.W. and Harms, T.M., Reverse rotation of a multi-stage axial flow compressor.  Presented at Hefat2008, 6th International Conference on                Heat Transfer, Fluid Mechanics and Thermodynamics, 30 June – 2 July 2008, Pretoria University, Pretoria, South Africa, 9 pp., Paper No. GA1, 2008.

68. Fluri, T.P. and Von Backström, T.W., Cost Optimization of Solar Chimney Power Conversion Units, 1st International Conference on Solar Heating, Cooling and                      Buildings, Eurosun 2008, Lisbon, Portugal, 7-10 October 2008.

69. Stander, J.N., Harms, T.M., Von Backström, T.W., A small commercial wind energy conversion system for the South African Antarctic Base SANAE IV, Winterwind               2008, An International Cold Climate Wind Turbine Conference, Norrköping, Sweden, 9 ‑ 10 December, 2008.

70. Dunn, D., Snedden, G. and Von Backström, T.W., Turbulence model comparisons for a low pressure 1.5 stage test turbine, 19th ISABE-2009-1258, Le Centre Sheraton        Montréal Hotel, Montreal, Canada, September 7-11, 2009.

71. Von Backström, T.W., Maliage, S.M., Stall considerations in solar chimney turbines, ISES Solar World Congress 2009, Renewable Energy Shaping our Future, Sandton       Convention Centre, Johannesburg, South Africa, Paper No. 380 ISBN:  978-1-920017-42-2, pp. 1156 – 1165, 11 – 14 October 2009.

72. Fluri, T.P. and Von Backström, T.W., Comparison of solar resource assessments for South Africa, ISES Solar World Congress 2009, Renewable Energy Shaping our              Future, Sandton Convention Centre, Johannesburg, South Africa, Paper No. 408, ISBN:  978-1-920017-42-2, pp. 68 – 76, 11 – 14 October 2009.

73. Van der Spuy, S.J., Von Backström, T.W. and Kröger, D.G., The use of the actuator disk method to model axial flow fans in CFD, Paper OP15, 14th IAHR Cooling Tower        and Heat Exchanger Conference, Conservatorium, Stellenbosch, South Africa, 1-3 Dec. 2009.

74. Pierce, W.T., Von Backström, T.W., Laminar Separation bubble prediction with CFD, ISES Solar World Congress 2009, Sandton Convention Centre, Johannesburg,                South Africa, ISES 2009:  1057-1064.

75. Dunn, D. Snedden, G. and von Backström, T.W., Experimental investigation into the unsteady effects of non-axisymmetric turbine endwall contouring, 7th South                African Conference on Computational and Applied Mechanics (SACAM10), University of Pretoria, Pretoria, South Africa, 10-13 January 2010.

76. Le Roux, F.N., van der Spuy, S.J. and von Backström, T.W., The CFD-simulation of an Axial Flow Fan Performance Curve, 7th South African Conference on                                Computational and Applied Mechanics (SACAM10), University of Pretoria, Pretoria, South Africa, 10-13 January 2010.

77. De Wet, A.L., van der Spuy, S.J. and von Backström, T.W., The CFD Simulation of a Centrifugal Compressor, 7th South African Conference on Computational and                 Applied Mechanics (SACAM10), University of Pretoria, Pretoria, South Africa, 10-13 January 2010.

78. Gill, A., von Backström, T.W. and Harms, T.M., The flow field within an axial flow compressor at extremely high flow coefficients. ASME Turbo Expo 2010, June 14-18          2010, Glasgow, Scotland, UK.

79.  Kuhn, M, von Backström, T.W. and Fluri, T.P., The influence of tip clearance effects on the performance of solar chimney turbines, International Conference on                  Solar Chimney Power Technology, Ruhr-University Bochum, Germany, 28-30 September 2010.

80. Von Backström, T.W. and Fluri, T.P., Solar chimney turbine layout and design considerations, International Conference on Solar Chimney Power Technology, Ruhr-           University Bochum, Germany, 28-30 September 2010.

81. Van der Spuy, S.J., le Roux, F.N., Von Backström, T.W., Kröger, D.G.  The simulation of an Axial flow fan performance curve at low flow rates.  ASME Turbo Expo,                 Vancouver, Canada, 6 – 10 June 2011.

82. Snedden, G., Dunn, D.,  Von Backström, T.W., Kröger, T.W., Observations on the selection of objective function for the optimisation of turbine endwalls using                     computational fluid dynamics, Seventh South African Conference on Computational and Applied Mechanics SACAM 10, University of Pretoria, Pretoria, South Africa,       SACAM 2010:1

83. Van der Spuy, S.J., Von Backström, T.W., Kröger, D.G., The use of actuator disc method to model axial flow fans in CFD.  14th IAHR Cooling tower and air-cooled heat          exchanger conference, Music Conservatoire, University of Stellenbosch, Stellenbosch, South Africa, IAHR 2010: 1-7

84. Van der Spuy, S.J., Von Backström, T.W., Kröger, D.G.,   The simulation of an axial flow fan performance curve at low flow rates, Proceedings of the ASME TURBO                EXPO, Vancouver, 2011,  ISBN 978-0-7918-5464-8

85. Van der Spuy, S.J., Von Backström, T.W., Kröger, D.G.,  Using computational fluid dynamics to simulate multiple axial flow fans in air-cooled steam condensers,                   Proceedings of the ASME Power Conference, Denver, 2011.  ISBN 978-0-7918-4459-5

86. Ackerman, P.H., Von Backström, T.W.and Van Niekerk, J.L. Numerical simulation of a wave energy conversion system.  Ninth European Wave and Tidal Energy                    Conference (EWTEC2011), University of Southampton, UK,  September 2011. (Poster)

87. Reinecke, Effect of a Diffuser on the Performance of an Ocean Current Turbine Ninth European Wave and Tidal Energy Conference (EWTEC2011), University of                  Southampton, UK, September 2011. (Poster)

88. Kotzé, J.P. , Von Backström, T.W.and Erens, P.J., A combined latent thermal energy storage and steam generator concept using metallic phase change materials and       metallic heat transfer fluids for concentrated solar power.  SolarPACES Conference, Granada, 2011

89. Allen, K.G., Von Backström, T.W. and Kröger, D.G. , Packed beds of rock for thermal storage.  First South African Solar Energy Conference (SASEC 2012), Protea                  Hotel, Technopark, Stellenbosch, Sout Aftrica, 2012: 1-9

90. Gauché, P., Pfenninger, S., Meyer, A.J., Von Backström, T.W. and Brent, A.C. , Modelling dispatchability of CSP in South Africa.  First South African Solar Energy                    Conference (SASEC 2012), Protea Hotel, Technopark, Stellenbosch, Sout Aftrica, 2012: 1-11

91. Gauché, P., Von Backström, T.W. and Brent, A.C. , A value proposition for  CSP in South Africa.  First South African Solar Energy Conference (SASEC 2012), Protea               Hotel, Technopark, Stellenbosch, Sout Aftrica, 2012: 1-12

92. Harper, P. J., Von Backström, T.W., Fluri, T.P, and Kröger, D.G.. , TRNSYS modelling of a 100MWE hybrid combined cycle concentrating solar power plant.  First South        African Solar Energy Conference (SASEC 2012), Protea Hotel, Technopark, Stellenbosch, Sout Aftrica, 2012: 1-9

93. Kotze, J.P., Von Backström, T.W. NaK as a primary heat transfer fluid in thermal solar power installations. First South African Solar Energy Conference (SASEC 2012),         Protea Hotel, Technopark, Stellenbosch, Sout Aftrica, 2012: 1-10

94. Walker, G. Von Backström, T.W. and Gauché, P., A method of increasing collector aperture in linear Fresnel solar concentrators at high zenith angles. First South              African Solar Energy Conference (SASEC 2012), Protea Hotel, Technopark, Stellenbosch, Sout Aftrica, 2012: 1-7

95. Louw, F.G., Bruneau, P.R.P., Von Backström, T.W., Van der Spuy, S.J. The design of an axial flow fan for application in large air-cooled heat exchangers. Proceedings         of the ASME TURBO EXPO (2012) volume 8 part A, Copenhagen, Denmark, 11-15 June, 2012. ISBN 978-0-7918-4469-4

96. De Wet, A.L., Von Backström, T.W., Van der Spuy, S.J. Performance investigation of a turbocharger compressor. Proceedings of the ASME TURBO EXPO (2012) volume 8 part A, Copenhagen, Denmark, 11-15 June, 2012. ISBN 978-0-7918-4474-8

97. Wessels, F.J.L., Venter, G., Von Backström, T.W. An efficient scheme for describing airfoils using non-uniform rational B-splines. ASME Turbo Expo, Copenhagen,                Denmark, 11-15 June, 2012.

98. Gill, A., Von Backström, T.W., Harms, T.M., Dunn, D., Reverse flow turbine-like operation of an axial flow compressor. ASME Turbo Expo, Copenhagen, Denmark, 11-         15 June, 2012.

99. Kotze, J.P., Von Backström, T.W. NaK as a primary heat transfer fluid in thermal solar power installations. SolarPACES Conference, Palais de Congress, Marrakech,           Morocco, 11-14 September, 2012.

100. Dunn, D.,  Snedden, G.,  Von Backström, T.W. and Mdluli, M.P., Unsteady effects of a generic non-axisymmetric endwall contour on the rotor of a 1½ stage low                 speed turbine test rig. ASME Turbo 2013

101. Gill, A., Von Backström, T.W. and Harms, T.M., Flow fields in an axial flow compressor during four-quadrant operation,.ASME Turbo 2013

102. Kotze, J.P., Von Backström, T.W. and Erens, P.J. Simulation and testing of a  latent heat thermal energy storage unit with metallic phase change                                              materials.SolarPACES 2013, , Las Vegas, USA Energy Procedia 2014: 860-869.

103. Allen, K.G., Von Backström, T.W. and Kröger, D.G, Packed rock bed thermal storage in power plants: design considerations. SolarPACES 2013, Las Vegas, USA,                    Energy Procedia 2014: 666-675.

104. Brooks,  M.J., Von Backström, T.W. and Van Dyk, On the replacement of missing data in solar radiometric time series of high temporal resolution. Southern African         Solar Energy Conference 2014

105. Augustyn, O.P.H., Van der Spuy, S.J. and Von Backström, T.W., Performance investigation of a reverse engineered axial flow fan by numerical simulation. 9th South            African Conference on Computational and Applied Mechanics 2014 (SACAM 2014), Lord Charles Hotel, Somerset West RSA 2014: 10

106. Dunn, D, Snedden, G and Von Backström, T.W. Unsteady effects of a generic non-asymmetric rotor endwall contour on a 1 ½ stage turbine test rig at off-design                conditions. ASME Turbo Expo 2014, Dusseldorf, Germany, 2014: 9

107. Louw, F.G. Von Backström, T.W. and Van der Spuy, S.J. Modelling of the flow field in the vicinity of an axial flow fan, focusing on low flow rates . 9th South African                Conference on Computational and Applied Mechanics 2014 (SACAM 2014), Lord Charles Hotel, Somerset West RSA 2014: 10

108. Louw, F.G. Von Backström, T.W. and Van der Spuy, S.J. Investigation of the flow field in the vicinity of an axial flow fan during low flow rates . ASME Turbo Expo                 2014, Dusseldorf, Germany, 2014: 1-14.

109. Lubkoll, M. Von Backström, T.W. and Kröger, D.G. Survey on pressurised air receiver development. 2nd Southern African Solar Energy Conference (SASEC 2014)                 Port Elizabeth, South Africa, 2014.

110. Gill, A., Von Backström, T.W. and Harms, T.M., Radially and circumferentially oriented vortices in axial flow compressors, Paper FEDSM2014-21129, ​

​         Proceedings of the ASME 4th joint US-European Fluids Engineering Summer meeting,  2014, Chicago.

111. LOUW FG, VON BACKSTROM TW, VAN DER SPUY SJ. Experimental investigation of the blade surface pressure distribution in an axial flow fan for a range of flow               rates. ASME Turbo Expo 2015, Montreal, Canada, The American society of Mechanical Engineers 2015: 1-12.

112. ALLEN KG, PITOT DE LA BEAUJADIERE J, VON BACKSTROM TW, REUTER HCR. The Suitability of the Infinite NTU Model for Long-Term Rock Bed Thermal Storage                 Performance Simulation. 3rd Southern African Solar Energy Conference, Skukuza, Kruger National Park, South Africa, UPSpace Institutional Repository - Dept of               Library Services 2015: 1-8.

113. LUBKOLL M, VON BACKSTROM TW, KROGER DG. Survey on Pressurized Air receiver Development. 2nd Southern African Solar Energy Conference (SASEC), Port                 Elizabeth, South Africa, EDAS, National Library of South Africa 2014: 1-8.

114. ALLEN KG, VON BACKSTROM TW, JOUBERT EC, GAUCHÉ P. Rock bed thermal storage: Concepts and costs. 21st SolarPACES International Conference, Cape Town,             South Africa, AIP Publishers 2016: 050003, 8pages.

115. DIENER OHF, VAN DER SPUY SJ, VON BACKSTROM TW, HILDEBRANDT TW. Multi-disciplinary optimization of a mixed-flow compressor impeller. ASME 2016 Turbo              Expo, Tampa, Florida, USA, ASME 2017 IMECE 2016: GT2016-57008,14 pages.

116. GAUCHÉ P, VON BACKSTROM TW, BRENT AC, RUDMAN J. CSP opportunity and challenges in a national system: The WWF renewable vision for a 2030 South African          electricity mix. 21st SolarPACES International Conference, Cape Town, South Africa, AIP Publishers 2016: 080002, 8pages.

117.  HOMANN C, VAN DER SPUY SJ, VON BACKSTROM TW. The effects of solarization on the performance of a gas turbine. Concentrating Solar Power and Chemical                 Energy Systems, Cape Town, South Africa, AIP Publishers 2016: 1063, 8 pages.

118.  LUBKOLL M, VON BACKSTROM TW, HARMS TM. Performance outlook of the SCRAP receiver. 21st SolarPACES International Conference, Cape Town, South Africa,              AIP Publishers 2016: 030024, 7pages.

119.  WILKINSON MB, LOUW FG, VAN DER SPUY SJ, VON BACKSTROM TW. A comparison of actuator disc models for axial flow fans in large air-cooled heat exchangers.            ASME 2016 Turbo Expo, Tampa, Florida, USA, ASME 2017 IMECE 2016: GT2016-56491.



​​Academic Experience

  • Teaching, Undergraduate: Introductory Machine Design, Fluid Mechanics, Fluid Machinery, Aerodynamics, Energy Systems, Environmental Engineering.
  • Graduate teaching:  Gas Dynamics, Aircraft Propulsion, Advanced Fluid Mechanics, Hydro power systems.
  • Promoter for 18 Ph.D. students
  • Supervisor for 58 Masters students


Students Supervised for Advanced Degrees

(A)    PhD and DEng dissertations completed under my supervision

  1. Thiart, G.D., A numerical procedure for predicting the effects of distorted inflow conditions on the performance of axial flow fans, March 1991.
  2. Harms, T.M., A numerical method for the analysis of flow fields with complex boundaries, March 1995.
  3. Terblanche, E., Bi-axial yield locus with a single cruciform specimen (Internal co‑promoter), March 2000.
  4. Gannon, A.J., Solar chimney turbine performance, March 2002.
  5. Kröger, D.G., Air-cooled heat exchangers and cooling towers – thermal-flow performance evaluation and design. (DEng degree),
    Dec. 2004.
  6. Bell, A.J., The effect of fuel formulation on the exhaust emissions of spark ignition engines. (Co-promoter with Dr A.B. Taylor), March 2006.
  7. Heise, R., Implementation of a two-stream fan in the CIRSTEL system,  Dec. 2006.
  8. Fluri, T.P., Turbine layout for and optimization of solar chimney power conversion units, 2008.
  9. Maneschijn, A., Continued airworthiness criteria for unmanned aerial vehicle systems. (Co-promoter with Dr T. Jones), 2010
  10. Van der Spuy, S.J., Perimeter fan performance in forced-draught air cooled steam condensers. (Prof. D.G. Kröger is co-promoter), Dec. 2011.
  11. Gill, A., The Investigation of Four Quadrant Axial Flow Compressor Performance. (Prof. TM Harms is co-promoter), March 2012. 
  12. Allen, K.  Rock bed thermal thermal storage for concentrating solar power plants.  (Prof D.G. Kröger is co-promoter), March 2014
  13. Dunn, D.I., The effect of endwall contouring on the unsteady flow through a turbine rotor. Dec 2014.
  14. Kotze, J.P.,  Metallic phase change materials as a thermal energy storage concept.  Dec 2014. (Dr P.J. Erens is co-promoter)
  15. Brooks, M.,  Solar resource assessment, Dec 2015.
  16. Louw, F.,  Axial fan performance at low flow rates, Dec 2015.  (Prof. S.J. van der Spuy is co-promoter)
  17. Gauché, P., Spatial temporal model to evaluate the system potential of concentrating solar power towers in South Africa.

 PhD theses currently under supervision​

2. Lubkoll, M.,  Solar receiver with pressurised air as working fluid.

3. Erfort, G.,  Vertical axis wind turbine optimisation


 

MEng theses completed under my supervision​

1. Basson, A.H., Numerical prediction of two dimensional axial turbo-machinery cascade flows, December 1987.

2. Rossouw, M.A., An analysis of gas servo-mechanism behaviour, March 1988.

3. Van Schalkwyk, R., Free surface influence on hydrofoil characteristics, March 1988.

4. Pool, C.H., Teoretiese en eksperimentele bepaling van 'n missiel se vlerkpuntwerweltrajekte (Theoretical and experimental determination of missile wing tip vortex       trajectories), December 1991.

5. Ras, M.C.D., Vereiste lugsnelheidsprofiele vir newel-blasertoerusting in boorde (Required air velocity profiles for mist blowers in orchards), March 1991.

6. Reynaud, F.P., Hydrodynamic modelling of torque converters, March 1991.

7. Venter, A.A., The flow around torque converter turbine blades, November 1993.

8. Bruneau, P.R.P., The design of a single rotor axial flow fan for a cooling tower application, August 1994.

9. Roos, T.H., A prediction method for flow through axial compressors, March 1999.

10. Maré, C.S., Numerical prediction of gas-particle two-phase flow fields in simple geometries, December 1996.

11. Du Preez, P.O., Supersonic aircraft intake with ejector assisted boundary layer bleed, March 1997.

12. Gannon, A.J., A compressible formulation of the streamline through-flow method for axial compressors, March 1997.

13. Strohmaier, C.K.H., The effect of wind tunnel geometry on axial compressor inlet conditions, December 1997.

14. Wodrich, K.H.K., A design programme for dilute phase pneumatic conveyers, December 1997.

15. Van der Spuy, S.J., The design of a low-noise rotor-only axial flow fan series, March 1998.

16. Stinnes, W.H., The performance of axial fans subjected to forced cross-flow at inlet, December 1998.

17. Van der Merwe, D.J., The design of supersonic nozzles for viscous flow of gas mixtures with variable properties, December 1998.

18. Vermeulen, M.O., Characterization of a sonified peak flow monitor.  (Co‑supervisor, with J.A. Wessels at Medical Sciences), March 2000.

19. Du Toit, J.H, Design optimization of mixed flow fans, December 2002.

20. Teetz, H., Wind power at the SANAE base, December 2002. (Co-supervisor with T.M. Harms).

21. Pretorius, J.P., Solar tower power plant performance characteristics, (Co‑supervisor with D.G. Kröger), March 2004.

22. Kirstein, C.F., Flow through a solar chimney collector-to-chimney transition section, 2004.

23. Hotchkiss, P., Development of a rotor model for the numerical simulation of helicopter exterior flow-fields (Co-supervisor with CJ Meyer, UCT).  August 2004.

24. Thomas, K.D., Blade row and blockage modelling in an axial compressor through-flow code, March 2005.

25. Van der Merwe, J.C., The calculation of fluid flow through a torque converter turbine at stall, December 2005.

26. Loveday, H.N., The design of a hydrofoil system for sailing catamarans.  April 2006.

27. Gill, A., A comparison between stall prediction models for axial flow compressors, March 2006.

28.Cencelli, N., Aerodynamic optimisation of a fixed pitch wind turbine rotor. (TSA Denton is co-supervisor.) December 2006.

29. Pienaar, S.W., Model based control of airflow in a turbo charged engine (as co-supervisor, with Dr A.B. Taylor) December 2006.

30. Stander N.J., (13812890), The specification of a small commercial wind energy conversion system for the South African Antarctic Research Base SANAE IV.(as co-               supervisor, with Prof. T.M. Harms), December 2008.

31. Pierce, W.T., (14034840), Evaluation and performance prediction of a wind turbine blade, 2009. (MScEng).

32. Ackerman, Paul, (14107864), Air turbine design study for a wave energy conversion system (co-supervisor: J.L. van Niekerk ), 2010,  (MScEng).

33. Maliage, S.M., Solar chimney turbine stall characteristics.  (MEng)

34. Conradie, P.J.F., Edge fan performance in air cooled condenser sytems. (as co-supervisor, with S.J. van der Spuy), 2010. (MScEng)

35. De Wet, C.L., (14293730), Performance of a helium compressor under high through-flow conditions. (co-supervisor: with S.J. van der Spuy), 2010.  (MScEng).

36. Le Roux, F.N., CFD simulation of an axial flow fan. (as co-supervisor, with S.J. van der Spuy), 2010.  (MScEng).

37. Brosius, W., Feasibility study for wind power at SAB Newlands.(MEng)

38. Basson, J.A., (15545423), Investigation into the coupling of wind energy with pumped storage; Technical and financial feasibility, 2010. (MEng)

39. Reinecke, J. (14124491),  Effect of diffuser on the power production of an ocean current turbine, 2011.  (MScEng)

40. De Wet, A.L., (14202948),  Performance investigation of a turbocharger compressor. (S.J. van der Spuy is co-supervisor), 2011.  (MScEng)

41. Raubenheimer, G.A.,  Forced excitation of axial flow compressor blades (as co-supervisor, with S.J. van der Spuy), 2011.  (MScEng)

42. Van der Merwe, B.B. Design of compressor impeller for micro gas turbine application, (co-supervisor with S.J. van der Spuy). March 2012.

43. Krige, D.  Performance evaluation of a micro gas turbine centrifugal compressor diffuser, 2013, (co-supervisor, S.J. van der Spuy).  (MScEng).

44. Augustyn, O.  Experimental and numerical analysis of axial flow fans, (co-supervisor with S.J. van der Spuy), 2013.  (MScEng).

45. Schnabl, A.  Analysis of the performance of turbines attached to underwater power generation kites, 2013.  (MEng)

46. Walker, G.  Development of a low cost linear Fresnel solar concentrator, (co-supervisor P. Gauché), 2013.  (MScEng).

47. Basson, JGT.  Design methodology of an axial-flow turbine for a microjet engine,. Dec 2014 (co-supervisor, S.J. van der Spuy).  (MScEng)

48. Graaff, S.  Modelling and verification of the dynamics of an ocean current energy converter.  Dec 2014 (co-supervisor with J.L. van Niekerk).  (MScEng).

49. De Villiers, L.C.B.  Design of a centrifugal compressor for application in micro gas turbines,  Dec 2014 (co-supervisor with S.J. van der Spuy).  (MScEng).

50. Fourie, N.  Simulating the effect of wind on the performance of axial fans in air-cooled steam condenser systems, 2014 (co-supervisor with S.J. van der Spuy).                    (MScEng).

51. Struwig, D.J.  The development and verification of a centrifugal compressor test bench, 2014 (co-supervisor with S.J. van der Spuy).  (MScEng).

52. Geldenhuys, H. Jacques. (10921389) Aerodynamic optimisation of a contra-rotating shrouded rotor system for a surface launched aerial decoy. March 2015.

53. Marais, O.  Vertical wind turbine investigation.  March 2015.

54. Luiten, R.  CFD simulation of gas turbine with off centre combustion chamber. (co-supervisor, S.J. van der Spuy).  March 2015 2014.

55. Zhang, Y. Conversion of gas turbine from kerosene to LPG as fuel. (co-supervisor, R. Haines).  March 2016

56. Burger, C.  Compact diffuser design for centrifugal compressor. (co-supervisor with S.J. van der Spuy). March 2016

57. Diener, O. Optimisation of mixed flow compressor. (co-supervisor with S.J. van der Spuy). March 2016.

58. BURGER CJ, VAN DER SPUY SJ, VON BACKSTROM TW. Design procedure of a compact crossover diffuser for micro gas turbine application . MIng Navorsing, 2016. 82        pp.

59. DIENER OHF, VAN DER SPUY SJ, VON BACKSTROM TW. Development of a Mixed-Flow Compressor Impeller for Micro Gas Turbine Application . MIng Navorsing,               2016. 80 pp.

60. OPPONG F, VAN DER SPUY SJ, VON BACKSTROM TW. Micro gas turbine performance evaluation. . MIng Navorsing, 2016. 80 pp.

61. ZHANG Y, VON BACKSTROM TW, HAINES RW. Pre-study for Conversion of a Gas Turbine from Liquid to Gaseous Fuel . MIng Navorsing, 2016. 81 pp.


MScEng theses currently under supervision

​1. Smit, F.  Radial inflow turbine performance

2. Oppong, F.  Compressor and turbine matching in gas turbiness

3. Laubscher, H. Design of low cost thermal energy storage in rock beds

4. Nel, J.C. Analysis of low cost thermal energy storage in rock beds

5. Kock, P.  Mixed flow compressor diffuser design

6. Wessels, F.  Wind turbine optimisation

Contract Reports

AEB and UCOR Reports​

1. A Simple Method for the Creation of Orthogonal Curvilinear Grids, 1975.

2. Non-Axisymmetric Flows through Axial Compressors, 1976.

3. Blade Vibration Limitations on Allowable Asymmetric Operation of Axial Compressors, July 1977.

4. Diffuser Design for the MZ-Compressor, 1977.

5. Aerodynamic and Mixing Tests on the MZ-Compressor, 1978.

6. Report on Gas Turbine Course at Cranfield Institute of Technology, June 1980.

7. The Design of the APX Compressor, 1981.

8. Blade Cascade Diffusers, 1981.

9. APX 350-1-1 compressor performance and suggested improvements, May 1984.

Bureau for Mechanical Engineering (BMI) Reports:​

  1. The APX 350-1 and APX 350-2 compressors: full speed performance, December 1985.
  2. Apartment APA 1-1 compressor aerodynamic design, December 1985.
  3. Prestudy:  axial flow compressors with pressure ratio 1.8 per stage, February 1986.
  4. Torque converter one-dimensional computer program, November 1986.
  5. Torque converter two dimensional impeller program, March 1987.
  6. Two-dimensional torque converter impeller program verification and application, April 1987.
  7. Report on overseas visit, June 1987.
  8. Water vapour compressor design study, October 1987.
  9. Apartment APA 1 compressor: first full speed tests, November 1987.
  10. Two-dimensional torque converter hub-to-shroud-program verification and application to torque converter impeller and turbine, December 1987.
  11. Dump diffuser research, March 1988.
  12. Application of two-dimensional programs to torque converter stator, March 1988.
  13. BMI one-dimensional torque converter model - operating manual, June 1988.
  14. Evaluation of Denton code, Stand Q3D, October 1988.
  15. Visit to gas turbine conference and universities, July 1990.​

Institute of Thermodynamics and Mechanics (ITM) Reports:​

16. Five-hole probe vibration in pump exit measurement, October 1995.

17. Fluid dynamics and performance of hydraulic torque converters, November 1995.

18. Aerodynamic Design of Fans for Dry Cooling Tower Applications, ITM/VB9301, March 1993.

19. The Effect of Hub Discs on the Performance of an Axial Fan, ITM/VB9302, December 1993.

20. Comparison of the Performance of the S- and V-Fans, ITM/VB9401, June 1994.

21. Measurement of the characteristics of the Winze-master SL pneumatically powered diaphragm pump, ITM/VB9402, December 1994.

22. The Design of a Fan Testing Facility for Noise and Performance Measurements, ITM/VB9403, December 1994.

23. The Effect of Inflow through an Angled Pipe on the Performance of Axial Fans, ITM/VB9501, December 1995.

24. Die Toets van 'n Sentrifugaalwaaier vir 'n Mielieplanter, ITM/VB9502, Februarie 1995.

25. Lay-out Design of Fan Series, ITM/VB9601, March 1996.

26. Fan Blade Design for Fan Series, ITM/VB9602, June 1996.

27. Cheetah Rebuild, Simulation and Project Proposals, ITM/VB9604, August 1996. (Uranium enrichment compressor)

28. A Numerical Procedure for the Design of Supersonic Nozzles, ITM/VB9605, November 1996.

29. Roof Ventilator Tests, ITM/VB9606, November 1996.

30. Mean Line Design of Axial Compressors for Closed Cycle Gas Turbine, ITM/VB9607, (PBMR compressors), December 1996.

31. Through-flow Design of Axial Compressors for a Closed Cycle Gas Turbine, ITM/VB9608, (PBMR compressors), December 1996.

32. Investigation of a core and tip flow axial fan, ITM/VB9801, March 1998.

33. Wine Tank Valve Tests, ITM/VB9802, May 1998.

34. Triple orifice valve tests, ITM/VB9803, August 1998.

35. Wind tunnel tests of 600 mm diameter ventilator. ITM/VB9901, April 1999.

36. Wine Tank Valve Tests for E&M Technology, ITM/VB9902, May 1999.

37. Fan conceptual design, ITM/VB9903

38. A basic comparison between axial turbines for solar chimney and wind power plants, ITM/VB9904, August 1999.

39. Fan aerodynamic design, ITM/VB9905, April 1999.

40. Fundamentals of Turbine and chimney flow in solar chimney power plants, ITM/VB001, March 2000.

41. Layout of dust separator fans, ITM/VB0101, January 2001.

42. A first look at the design of the turbines for a large solar chimney power plant, ITM/VN0102, June 2001.

43. End-wall boundary layers in axial flow compressors, ITM/VB0301, November 2003.

44. An axial flow compressor blade row performance model, ITM/VB0302, December 2003.

45. Four quadrant axial flow compressor maps. Part I:  Literature review and experimental layout, ITM/VB0503, March 2005.  (Applicable to PBMR)     

Research facilities and external funding

1. ​​Pneumatic probe calibration facility. (R24 000) 1986.

2. Small axial flow compressor (rebladed and refurbished). (R21 000) 1987.

3.Torque converter experimental facility (R100 000) 1989.

4. Turbocharger test rig (R120 000) 1990.

5. Tatung workstation for computational fluid dynamics (R50 000) 1992.

6. Laser two-focus velocimeter and optical table (R1 000 000) 1996.

7. THRIP R45 000 (1994 to 1999).

8. Foundation for Research Development (FRD) funding:  R23 000 (1994), R23 000 (1995), R50 000 (1997), R88 000 (1998), R133 000 (1999), R88 000 (2000), R48 000 (2001),     R124 000 (2003), R100 500 + R77 000 (2004), R100 500 + R110 000 (2005, 2006), R114 000 + R131 000 + R 99 000 (2007-2009).  R80 000 p.a. (2010 - 2014)                                   Total:  R1 706        000.

9. VW Stiftung, part of R600 000 grant (2003-2006).

10. SANERI funding for two Ms R280 000 (2007-2008)

11. Denel Dynamics funding for M R140 000 (2008-2009)

12. Solar Spoke R300 000 p.a. (2008- 2009), R500 000 p.a. (2010- 2011), R750 000 p.a. (2012-2013)

Appointments and awards

1. Editor, SAIMechE R&D Journal (2004 – July 2006).

2. Member of Editorial Board of International Journal of Turbo and Jet Engines.

3. Member of Editorial Advisory Board of Aeronautica Meridiana.

4. Associate Guest Editor, Solar Energy

5. Referee for SAIMechE R&D Journal.

6. Referee for ASME papers on torque converters.

7. Referee for Applied Heat Transfer papers on fans.

8. Referee of turbomachinery papers for the following Journals:

     a) Applied Thermal Engineering

      b) IMechE Journal of Power and Energy

9. Referee of renewable energy papers for the following journals:

      a) ASME Journal of Solar Energy Engineering

      b) ISES Solar Energy Journal

      c) Applied Thermal Engineering (Elsevier)

      d) Energy (Elsevier)

      e) Climatic Change (Springer)

      f) Heat Transfer Engineering (Taylor and Francis)

      g) Atmospheric Research (Elsevier)

10. On SAAM Conference paper review panels.

11. Regular Session Chair at SAAM and HEFAT conferences.

12. Winner:  Faculty Researcher of the Year Medal, 1992.

13. Co-author with GD Thiart of paper awarded SAIMechE Silver Medal for best research paper in R&D Journal, 1992.

14. Co-author with A Venter of paper awarded SAIMechE Silver Medal for best research paper in R&D Journal, 1994.

15. Supervisor of final year project of Karsten Wodrich, winner of 1994 Goldfields National Final Year Project Competition.

16. Co-author with TM Harms of paper awarded SAIMechE LT Campbell-Pitt Award, for best paper of sufficient merit in R&D Journal, 1997, on any subject excluding                mining or transport.

17. Co-author with K Wodrich of paper awarded SAIMechE Silver Medal for best research paper in R&D Journal, 1998.

18. Supervisor of MScEng thesis of Wolf Stinnes, best graduate student in the Department, 1998.

19. Co-author with AJ Gannon of ASME best paper in Heating and Cooling Division at SOLAR 2000 Conference, Madison Wisconsin, 16-21 June 2000.

20. Co-author with AJ Gannon of paper awarded SAIMechE LT Campbell-Pitt Award, for best paper of sufficient merit in R&D Journal, 2000, on any subject excluding             mining or transport.

21. Co-author with SJ van der Spuy of paper awarded SAIMechE Ingwe Award for best paper of sufficient merit in R&D Journal, 2003, relating to the mining industry.

22. Supervisor of MScEng thesis of Carl Kirstein, best graduate student in the Department, 2004.

23. Winner:  Faculty Lecturer of the Year Medal, 2005.

24. Special Award from the SAIMechE for "Outstanding contribution as Editor of the R&D Journal", 2007.

25. Co-author with A Maneschijn et al. of paper awarded Royal Aeronautical Society Bronze Award and Hodgson Prize for a paper published in The Aeronautical                     Journal, 2008.

26. Honorary Fellowship of SAIMechE, 2008.

27. DEng degree, 2012.

28. Nominated as one of the researchers who made the greatest contribution during the last audited year before 2014 in terms of research output and PhDs.