Dr David Gildfind

Lecturer

School of Mechanical and Mining Engineering
Faculty of Engineering, Architecture and Information Technology
d.gildfind@uq.edu.au
+61 7 336 53593

Overview

David Gildfind’s research is primarily concerned with experimental hypersonics. His research interests include: expansion tube facility development; scramjet propulsion; planetary entry aerothermodynamics; and magnetohydrodynamic aerobraking.

David graduated as an aerospace engineer from RMIT University in 2001. He worked in industry on various aircraft platforms in Australia and overseas (GKN in Melbourne 2002-2003 on A340/A380; Australian Aerospace in Brisbane 2003-2005 on DHC4 Caribou; and Stork Fokker in The Netherlands 2005-2007 on F35-JSF and Gulfstream G6), and retains a strong interest in aircraft structures. He later completed his PhD and post-doctoral work in hypersonics at the University of Queensland (UQ), where he developed the capability for expansion tubes wind tunnels to simulate reallistic scramjet flight trajectories beyond Mach 10. His research in this area includes optimising free-piston driver operation, expansion tube flow condition development, and test flow characterisation.

David became a lecture at UQ's School of Mechanical and Mining Engineering in 2014, and teaches into aircraft structures and hypersonics. During this time David has initiated a new research program on Magnetohydrodynamic (MHD) aerobraking, and currently holds an ARC DECRA fellowship (2017-2020) to experimentally evaluate MHD aerobraking technology for a human mission to Mars.

Research Interests

  • Expansion tube facility development
  • Scramjet propulsion
  • Planetary entry aerothermodynamics
  • Magnetohydrodynamic aerobraking

Research Impacts

Expansion tube facility development: expansion tubes are the only hypersonic wind tunnels capable of simulating the final stages of flight for a scramjet powered access-to-space launch vehicle. Unlike conventional rocket engines, scramjets extract their oxidiser from the atmosphere during flight, dramatically reducing the mass of propellant that must be carried by the launch vehicle, and are expected to be a viable between Mach 5 and 15. However, testing these engines in a wind tunnel becomes extraodinarilly difficult beyond Mach 10 due to the combined requirements of high speed (>11,000 km/hr) and high static pressure (scramjets must fly relatively low in the atmosphere where there is sufficient oxygen available), and has proven impossible with conventional hypersonic wind tunnels. This research into expansion tubes is important because it has finally enabled reallistic scramjet ground testing at high Mach numbers. This work paves the way for experimental evaluation of the new scramjet engine designs which will power the next generation of efficient and low cost launch vehicles critical to Australia's future space program.

MHD aerobraking: In the thin atmosphere of Mars, aerodynamic drag alone is not enough to land a spacecraft larger than 1 tonne. A human mission to Mars requires landing of payloads up to 80 tonne. MHD Aerobraking involves applying a magnetic field to the hot ionized gases which form around the spacecraft during re-entry, which can provide a path for dissipating kinetic energy and reducing surface heating. This technology will allow spacecraft to land heavier payloads, and fly faster, than is currently possible. The significance of this research is its potential to make Mars-return missions feasible by enabling greatly increased payloads on the initial Mars landing, and upon return from deep space back to Earth, provide a mechanism to reduce the tremendous vehicle heat loading associated with the fastest ever re-entry to Earth's atmosphere.

Qualifications

  • Graduate Certificate in Higher Education, The University of Queensland
  • Doctor of Philisophy, The University of Queensland
  • Bachelor of Business (Administration), Royal Melbourne Institute of Technology
  • Bachelor of Engineering (Honours), Royal Melbourne Institute of Technology

Publications

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Grants

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Supervision

  • Doctor Philosophy

  • Doctor Philosophy

  • Doctor Philosophy

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Publications

Book

Book Chapter

  • Gildfind, David, Morgan, Richard G. and Jacobs, Peter A. (2016). Expansion tubes in Australia. In Ozer Igra and Friech Seiler (Ed.), Experimental methods of shock wave research (pp. 399-431) Basel, Switzerland: Springer. doi:10.1007/978-3-319-23745-9_13

Journal Article

Conference Publication

  • Gildfind, David E., Smith, Daniel, Lewis, Steven W., Kelly, Rory, James, Christopher M., Wei, Han and McIntyre, Timothy (2018). Expansion Tube Magnetohydrodynamic Experiments with Argon Test Gas. In: 2018 Flow Control Conference. 2018 Flow Control Conference, Atlanta, Georgia, (). 25-29 June 2018. doi:10.2514/6.2018-3754

  • Gildfind, David and Morgan, Richard G. (2017). A new sliding joint to accommodate recoil of a free-piston driven expansion tube. In: Gabi Ben-Dor, Ozer Igra and Oren Sadot, 30th International Symposium on Shock Waves 2. The 30th International Symposium on Shock Waves, Tel Aviv, Israel, (1397-1400). 19-24 July 2015. doi:10.1007/978-3-319-44866-4_105

  • Andrianatos, Andreas, Gildfind, David and Morgan, Richard G. (2017). Driver Condition Development for High Enthalpy Operation of the X3 Expansion Tube. In: Akihiro Sasoh, Toshiyuki Aoki and Masahide Katayama, 31st International Symposium on Shock Waves. 31st International Symposium on Shock Waves, Nagoya, Japan, (). 9-14 July 2017. doi:10.1007/978-3-319-91017-8

  • James, Christopher M., Gildfind, David E., Morgan, Richard G., Lewis, Steven W. and McIntyre, Timothy J. (2017). Experimentally simulating gas giant entry in an expansion tube. In: 21st AIAA International Space Planes and Hypersonics Technologies Conference, International Space Planes and Hypersonic Systems and Technologies Conferences,. 21st International Space Planes and Hypersonic Systems and Technologies Conference, Xiamen, China, (). 6 - 9 March 2017. doi:10.2514/6.2017-2152

  • Toniato, Pierpaolo, Gildfind, David, Jacobs, Peter A. and Morgan, Richard G. (2017). Optimisation and design of a fully instrumented Mach 12 nozzle for the X3 expansion tube. In: 31th International Symposium on Shock Waves. 31th International Symposium on Shock Waves, Nagoya, Japan, (). 9-14 July 2017.

  • Stennett, Samuel, Gildfind, David and Jacobs, Peter A. (2017). Optimising the X3R Reflected Shock Tunnel Free-Piston Driver for Long Duration Test Times. In: Akihiro Sasoh, Toshiyuki Aoki and Masahide Katayama, 31st International Symposium on Shock Waves. 31st International Symposium on Shock Waves, Nagoya, Japan, (). 9-14 July 2017.

  • Toniato, Pierpaolo, Gildfind, David and Morgan, Richard G. (2016). Current progress of the development of a Mach 12 scramjet operating condition in the X3 expansion tube. In: 11th International Workshop on Shock Tube Technology, Gottingen, Germany, (). 30 June -2 July 2016.

  • Toniato, Pierpaolo, Gildfind, David E., Jacobs, Peter A. and Morgan, Richard G. (2016). Development of a new Mach 12 scramjet operating capability in the X3 expansion tube. In: 7th Asia-Pacific International Symposium on Aerospace Technology (APISAT). Asia-Pacific International Symposium on Aerospace Technology (APISAT), Cairns, QLD, Australia, (). 25 – 27 November 2015.

  • Chua, Aaron, Rufford, Thomas, Arami-Niya, Arash, Rose, Erika and Gildfind, David (2016). Evaluation of a pressure-swing adsorption process for recovery of helium from a laboratory shock-tunnel facility. In: 12th International Conference on the Fundamentals of Adsorption (FOA12), Friedrichshafen, Germany, (). 29 May - 3 June 2016.

  • Toniato, P., Gildfind, D. E., Jacobs, P. A. and Morgan, R. G. (2016). Extension of the X3 expansion tube capabilities for Mach 12 scramjet testing: flow condition: development and nozzle optimization. In: 20th Australasian Fluid Mechanics Conference. 20th Australasian Fluid Mechanics Conference, Perth, Western Australia, Australia, (). 5-8 December 2-16.

  • Andrianatos, A., Gildfind, D. and Morgan, R. (2016). Preliminary development of high enthalpy conditions for the X3 expansion tube. In: 20th Australasian Fluid Mechanics Conference, 20AFMC, Perth, WA, Australia, (). 5-8 December 2016.

  • James, C. M., Gildfind, D. E., Morgan, R. G., Lewis, S. W. and McIntyre, T. J. (2016). Simulating Gas Giant Entry with Increased Helium Diluent in in an Expansion Tube. In: Ben-Dor, 30th International Symposium on Shock Waves, Tel Aviv, Israel, (1-1). 19-24 July 2015.

  • Stennett, Samuel, Chan, Wilson, Gildfind, David and Jacobs, Peter (2016). Validating the k-omega turbulence model for 3D flows within the CFD solver Eilmer. In: The 2nd Australasian Conference on Computational Mechanics. Australasian Conference on Computational Mechanics, Brisbane, Australia, (67-72). 30 November - 1 December 2015. doi:10.4028/www.scientific.net/AMM.846.67

  • Andrianatos, Andreas, Gildfind, David and Morgan, Richard (2015). A study of radiation scaling of high enthalpy flows in expansion tubes. In: 7th Asia-Pacific International Symposium on Aerospace Technology, Cairns, QLD, Australia, (). 25 – 27 November 2015.

  • Andrianatos, Andreas, Gildfind, David and Morgan, Richard (2015). A study of radiation scaling of high enthalpy flows in expansion tubes. In: 7th Asia-Pacific International Symposium on Aerospace Technology. Asia-Pacific International Symposium on Aerospace Technology, Cairns, QLD, Australia, (). 25-27 November 2015.

  • Burgess, James and Gildfind, David (2015). CFD analysis of early diaphragm removal in expansion tubes. In: Australasian Conference on Computational Mechanics, Brisbane, QLD, Australia, (). 30 November - 1 December 2015.

  • Gildfind, D. E., Morgan, R. G. and Sancho, J. (2015). Design and commissioning of a new lightweight piston for the X3 Expansion Tube. In: Riccardo Bonazza and Devesh Ranjan, Proceedings of the 29th International Symposium on Shock Waves (ISSW29). International Symposium on Shock Waves, Madison, WI, United States, (367-372). 14-19 July 2013. doi:10.1007/978-3-319-16835-7_57

  • Gildfind, D. E., Sancho Ponce, J. and Morgan, R. G. (2015). High Mach Number Scramjet Test Flows in the X3 Expansion Tube. In: Riccardo Bonazza and Devesh Ranjan, Proceedings of the 29th International Symposium on Shock Waves (ISSW29). International Symposium on Shock Waves, Madison, WI, United States, (373-378). 14-19 July 2013. doi:10.1007/978-3-319-16835-7_58

  • Abdel-Magied, Yasseen, Gildfind, David and Malcolm, Douglas (2015). In situ exploration of metallic diaphragm rupture in a shock tunnel. In: AIAA Australian-Asia Regional Student Conference, Canberra, ACT, Australia, (). 23-­24 November, 2015.

  • James, C. M., Gildfind, D. E., Morgan, R. G., Lewis, S. W., Fahy, E. J. and McIntyre, T.J. (2015). Limits of Simulating Gas Giant Entry at True Gas Composition and True Flight Velocities in an Expansion Tube. In: 8th European Symposium on Aerothermodynamics for Space Vehicles, Lisbon, Portugal, (). 2-6 March 2015.

  • James, Christopher M., Gildfind, David E., Morgan, Richard G., Lewis, Steven W., Fahy, Elise J. and McIntyre, Timothy J. (2015). On the current limits of simulating gas giant entry flows in an expansion tube. In: 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference. AIAA International Space Planes and Hypersonic Systems and Technologies Conference, Glasgow, Scotland, (1-26). 6 - 9 July 2015. doi:10.2514/6.2015-3501

  • Morgan, R. G. and Gildfind, D. E. (2015). Shock tube simulation of low Mach number blast waves. In: Riccardo Bonazza and Devesh Ranjan, Proceedings of the 29th International Symposium on Shock Waves (ISSW29). International Symposium on Shock Waves, Madison, WI, United States, (83-88). 14-19 July 2013. doi:10.1007/978-3-319-16835-7_11

  • James, C., Gildfind, D., Morgan, R, Lewis, S., Fahy, E. and McIntyre, T. (2015). Simulating gas giant entry in an expansion tube. In: 7th Asia-Pacific International Symposium on Aerospace Technology. 7th Asia-Pacific International Symposium on Aerospace Technology, Cairns, Australia, (). 25-27 November 2015.

  • McGilvray, Matthew , Doherty, Luke , Morgan, Richard G. and Gildfind, David (2015). T6: The Oxford University Stalker Tunnel. In: 8th European Symposium on Aerothermodynamics for Space Vehicles, Lisbon, Portugal, (). 2-6 March 2015.

  • McGilvray, Matthew, Doherty, Luke, Morgan, Richard G. and Gildfind, David E. (2015). T6: The Oxford University Stalker Tunnel. In: 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference. International Space Planes and Hypersonic Systems and Technologies Conferences, Glasgow, Scotland, (). 6-9 July 2015. doi:10.2514/6.2015-3545

  • James, C .M., Gildfind, D. E., Morgan, R. G. and McIntyre, T. J. (2015). Working towards simulating gas giant entry radiation in an expansion tube. In: Riccardo Bonazza and Devesh Ranjan, Proceedings of the 29th International Symposium on Shock Waves (ISSW29). International Symposium on Shock Waves, Madison, WI, United States, (563-568). 14-19 July 2013. doi:10.1007/978-3-319-16835-7_89

  • Parekh, Viha, Gildfind, David, Lewis, Steven and James, Christopher (2015). X3 expansion tube driver gas spectroscopy and temperature measurements. In: AIAA Australian-Asia Regional Student Conference, Canberra, ACT, Australia, (). 23-24 November, 2015.

  • de Crombrugghe, G., Gildfind, D., Zander, F., McIntyre, T. and Morgan, R. (2014). Design of test flows to investigate binary scaling in high enthalpy CO2-N2 mixtures. In: Harun Chowdhury and Firoz Alam, Proceedings of the 19th Australasian Fluid Mechanics Conference. 19th Australasian Fluid Mechanics Conference, Melbourne, VIC, Australia, (325.1-325.4). 8-11 December 2014.

  • James, C. M., Gildfind, D. E., Morgan, R. G., Lewis, S. W., Fahy, E. J. and McIntyre, T. J. (2014). On the limits of simulating gas giant entry at true gas composition and true flight velocities in an expansion tube. In: 6th International Workshop on Radiation of High Temperature Gases in Atmospheric Entry, St Andrews, United Kingdom, (). 24-28 November 2014.

  • Gildfind, D. E., James, C. M. and Morgan, R. G. (2014). Performance considerations for expansion tube operation with a shock-heated secondary driver. In: Harun Chowdhury and Firoz Alam, The Proceedings of the 19th Australasian Fluid Mechanics Conference. 19th Australasian Fluid Mechanics Conference, Melbourne, VIC, Australia, (1-4). 8-11 December 2014.

  • James, Christopher, Gildfind, David, Morgan, Richard and McIntyre, Tim (2014). The limits of simulating gas giant entry at true gas composition and true flight velocities in an expansion tube. In: Harun Chowdhury and Firoz Alam, The Proceedings of the 19th Australasian Fluid Mechanics Conference. 19th Australasian Fluid Mechanics Conference, Melbourne, VIC, Australia, (1-4). 8-11 December 2014.

  • Morgan, Richard G. and David Gildfind (2014). X3 reflected shock tunnel for extended flow duration. In: 2014 Asia-Pacific International Symposium on Aerospace Technology, APISAT2014. The 2014 Asia-Pacific International Symposium on Aerospace Technology, Shanghai China, (). 24-26 September 2014.

  • Jacobs, Peter, Morgan, Richard, Brandis, Aaron, Buttsworth, David, Dann, Andrew, D'Souza, Mary, Eichmann, Troy, Gildfind, David, Gollan, Rowan, Jacobs, Carolyn, McGilvray, Matthew, McIntyre, Tim, Mudford, Neil, Porat, Hadas, Potter, Dan and Zander, Fabian (2013). Design, operation and testing in expansion tube facilities for super-orbital re-entry. In: O. Chazot and T. Magin, STO-AVT-VKI Lecture Series Radiation and Gas-Surface Interaction Phenomena in High Speed Re-Entry (2013-AVT-218), Rhode-St-Genèse, Belgium, (5-1-5-65). 6-8 May 2013.

  • James, Chris, Gildfind, David, Morgan, Richard G., Jacobs, Peter A. and Zander, Fabian (2013). Designing and simulating high enthalpy expansion tube conditions. In: Proceedings of the 2013 Asia-Pacific International Symposium on Aerospace Technology. APISAT 2013: 2013 Asia-Pacific International Symposium on Aerospace Technology, Takamatsu, Japan, (1-10). 20-22 November 2013.

  • James, Christopher M., Gildfind, David E., Morgan, Richard G. and McIntyre, Timothy J. (2013). Theoretical validation of a test gas substitution for expansion tube simulation of gas giant entry. In: 44th AIAA Thermophysics Conference 2013: Proceedings. 44th AIAA Thermophysics Conference, San Diego, United States, (109-127). 24-27 June 2013. doi:10.2514/6.2013-2506

  • Gildfind, D. E., Morgan, R. G., McGilvray, M., Jacobs, P. A., Stalker, R. J. and Eichmann, T. N. (2012). Free-piston driver optimisation for simulation of high Mach number scramjet flow conditions. In: Konstantinos Kontis, 28th International Symposium on Shock Waves. International Symposium on Shock Waves (28th, ISSW, 2011), Manchester, U. K., (987-993). 17-22 July 2011. doi:10.1007/978-3-642-25685-1_150

  • Gildfind, D. E., Morgan, R. G., McGilvray, M. and Jacobs, P. A. (2012). High mach number and total pressure flow conditions for scramjet testing. In: Konstantinos Kontis, 28th International Symposium on Shock Waves Vol 1 and 2. International Symposium on Shock Waves (28th, ISSW28), Manchester, U.K., (). 17-22 July 2011. doi:10.1007/978-3-642-25685-1_42

  • Gildfind, David E., Morgan, Richard G., McGilvray, Matthew and Jacobs, Peter (2012). Simulation of high mach number scramjet flow conditions using the X2 expansion tube. In: Proceedings of the 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference. 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference, Tours, France, (). 24-28 September 2012. doi:10.2514/6.2012-5954

  • Morgan, R. G., Sheikh, U. A. and Gildfind, D. E. (2012). Standing shock formation in a non-reflected shock tube. In: Konstantinos Kontis, 28th International Symposium on Shock Waves Vol 1 and 2. International Symposium on Shock Waves (28th, ISSW28), Manchester, U.K., (575-580). 17-22 July 2011.

  • Sancho, J., Gildfind, D. E., Jacobs, P. A. and Morgan, R. G. (2012). Toward the full CFD Simulation of expansion tubes. In: P. A. Brandner and B. W. Pearce, Proceedings of the 18th Australasian Fluid Mechanics Conference. 18th Australasian Fluid Mechanics Conference, Launceston, Australia, (). 3-7 December 2012.

  • Dann, A. G., Morgan, R. G., Gildfind, D. E., Jacobs, P. A., McGilvray, M. and Zander, F. (2012). Upgrade of the X3 super-orbital expansion tube. In: P. A. Brandner and B. W. Pearce, Proceedings of the 18th Australasian Fluid Mechanics Conference. 18th Australasian Fluid Mechanics Conference, Launceston, Australia, (). 3-7 December 2012.

  • Gildfind, D. E., Morgan, R. G. and Jacobs, P. A. (2012). Vibration isolation in a free-piston driven Expansion tube. In: P. A. Brandner and B. W. Pearce, Proceedings of the 18th Australasian Fluid Mechanics Conference. 18th Australasian Fluid Mechanics Conference, Launceston, Australia, (). 3-7 December 2012.

  • Jacobs, P. A., Gollan, R. J., Potter, D. F., Gildfind, D. E., Eichmann, T. N., O'Flaherty, B. F. and Buttsworth, D. R. (2010). CFD Tools for Design and Simulation of Transient Flows in Hypersonic Facilities. In: VKI RTO Proceedings. AVT-186 RTO AVT/VKI Lecture Series - Aerothermodynamic design, review on ground testing and CFD, Genese, Belgium, (). 29 March-01 April 2010.

  • Gildfind, D. E., Morgan, R. G., McGilvray, M., Jacobs, P. A., Eichmann, T., Stalker, R. J. and Teakle, P. (2010). Design of lightweight pistons for the X2 and X3 expansion tube free-piston drivers. In: G. D. Mallinson and J. E. Cater, Proceedings of the 17th Australasian Fluid Mechanics Conference. 17AFMC: 17th Australasian Fluid Mechanics Conference, Auckland, New Zealand, (857-861). 5-9 December 2010.

  • Gildfind, David and Rees, David (2002). Acceleration-Displacement Crash Pulse Optimisation – A New Methodology to Optimise Vehicle Response for Multiple Impact Speeds. In: Young Automotive and Transport Executives Conference 2002, Melbourne, VIC Australia, (). 29-30 October 2002.

  • Gildfind, David and Rees, David (2002). Crash Pulse Optimisation for Minimum Occupant Harm - A New Methodology to Calculate Fully Optimised Crash Pulses. In: Young Automotive and Transport Executives Conference 2002, Melbourne, VIC Australia, (). 29-30 October 2002.

  • Gildfind, David and Rees, David (2002). Derivation of a Harm Metric to Assess Total Occupant Injury – Application to a Crash Pulse Optimisation Study. In: Young Automotive and Transport Executives Conference 2002, Melbourne, VIC Australia, (). 29-30 October 2002.

Other Outputs

Grants (Administered at UQ)

PhD and MPhil Supervision

Current Supervision

Completed Supervision