Experimental investigation of a novel variable geometry radial ejector

Article

Al-Rbaihat, Raed, Saleh, Khalid, Malpress, Ray and Buttsworth, David. 2023. "Experimental investigation of a novel variable geometry radial ejector." Applied Thermal Engineering. 233. https://doi.org/10.1016/j.applthermaleng.2023.121143
Article Title

Experimental investigation of a novel variable geometry radial ejector

ERA Journal ID3658
Article CategoryArticle
AuthorsAl-Rbaihat, Raed, Saleh, Khalid, Malpress, Ray and Buttsworth, David
Journal TitleApplied Thermal Engineering
Journal Citation233
Article Number121143
Number of Pages23
Year2023
PublisherElsevier
Place of PublicationUnited Kingdom
ISSN1359-4311
1873-5606
Digital Object Identifier (DOI)https://doi.org/10.1016/j.applthermaleng.2023.121143
Web Address (URL)https://www.sciencedirect.com/science/article/pii/S1359431123011729
Abstract

This work focuses on improving ejector performance in variable conditions by developing a radial flow variable geometry radial ejector (VGRE). The research objective was to demonstrate the performance of the improved VGRE, which can operate more effectively under changing operating conditions compared to a fixed geometry design. The improved VGRE was developed and experimentally tested to enable adjustment of the nozzle and ejector throat areas to suit different ejector operating conditions in various applications. Radial ejectors have a smaller size than axial ejectors, which is a significant advantage in some applications. Results showed that the improved VGRE achieved higher entrainment ratio and critical compression ratio compared to a fixed geometry design and that optimal performance was obtained with nozzle and duct throat separations of 0.5 mm and 3.0 mm, respectively. The results also indicated that the wall static pressure in the throat region of the improved VGRE was similar to that observed in conventional axial ejectors and showed an average improvement of 107 % in entrainment ratio and 76 % in critical compression ratio relative to previous studies of air ejectors. The findings suggest that the improved VGRE concept could be applied to a wide range of applications in the future.

KeywordsVariable geometry; Radial ejector; Experiments; Entrainment ratio; Critical compression ratio; Isentropic ejector efficiency
ANZSRC Field of Research 2020401205. Experimental methods in fluid flow, heat and mass transfer
401206. Fluid-structure interaction and aeroacoustics
401799. Mechanical engineering not elsewhere classified
Byline AffiliationsSchool of Engineering
Tafila Technical University, Jordan
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Sleep EEG signal analysis based on correlation graph similarity coupled with an ensemble extreme machine learning algorithm
Abdulla, Shahab, Diykh, Mohammed, Lafta, Raid Luaibi, Saleh, Khalid and Deo, Ravinesh C.. 2019. "Sleep EEG signal analysis based on correlation graph similarity coupled with an ensemble extreme machine learning algorithm." Expert Systems with Applications. 138, pp. 1-15. https://doi.org/10.1016/j.eswa.2019.07.007
The influence of emulsified water fuel containing fresh water microalgae on diesel engine performance, combustion, vibration and emission
Al-lwayzy, Saddam H., Yusaf, Talal, Saleh, Khalid and Yousif, Belal. 2019. "The influence of emulsified water fuel containing fresh water microalgae on diesel engine performance, combustion, vibration and emission." Energies. 12 (13), pp. 1-17. https://doi.org/10.3390/en12132546
Measurement of water vapour in axisymmetric jet development using TDLAS
Al-Manea, A., Buttsworth, D., Leis, J., Choudhury, R. and Saleh, K.. 2018. "Measurement of water vapour in axisymmetric jet development using TDLAS." Lau, T. C. W. and Kelso, R. M. (ed.) 21st Australasian Fluid Mechanics Conference (AFMC 2018). Adelaide, Australia 10 - 13 Dec 2018 Australia. Australasian Fluid Mechanics Society.
Experimental and numerical study of OH* chemiluminescence in hydrogen diffusion flames
Zhao, Mengmeng, Buttsworth, David and Choudhury, Rishabh. 2018. "Experimental and numerical study of OH* chemiluminescence in hydrogen diffusion flames." Combustion and Flame. 197, pp. 369-377. https://doi.org/10.1016/j.combustflame.2018.08.019
Oscillating shock impinging on a flat plate at Mach 6
Currao, Gaetano M. D., McQuellin, Liam P., Neely, Andrew J., Zander, Fabian, Buttsworth, David R., McNamara, Jack J. and Jahn, Ingo. 2019. "Oscillating shock impinging on a flat plate at Mach 6." AIAA Aviation Forum 2019. Dallas, United States 17 - 21 Jun 2019 United States. https://doi.org/10.2514/6.2019-3077
Spacecraft Material Tests under Aerothermal and Mechanical Reentry Loads
Leiser, David, Lohle, Stefan, Zander, Fabian, Fasoulas, Stefanos, Buttsworth, David R. and Choudhury, Rishabh. 2019. "Spacecraft Material Tests under Aerothermal and Mechanical Reentry Loads." AIAA SciTech Forum 2019 . San Diego, United States 07 - 11 Jan 2019 United States. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2019-0161
The influence of fibre orientation on tribological performance of jute fibre reinforced epoxy composites considering different mat orientations
Alshammari, F. Z., Saleh, K. H., Yousif, B. F., Alajmi, A., Shalwan, A. and Alotaibi, J. G.. 2018. "The influence of fibre orientation on tribological performance of jute fibre reinforced epoxy composites considering different mat orientations." Tribology in Industry. 40 (3), pp. 335-348. https://doi.org/10.24874/ti.2018.40.03.01
Study of an axisymmetric backward facing step model in a supersonic flow
Zhao, Mengmeng, Buttsworth, David R., Choudhury, Rishabh, Malpress, Ray and Xing, Fei. 2016. "Study of an axisymmetric backward facing step model in a supersonic flow." 21st AIAA International Space Planes and Hypersonics Technologies Conference (Hypersonics 2017). Xiamen, China 06 - 09 Mar 2017 United States. https://doi.org/10.2514/6.2017-2181
Determining the Convergence of Synchronous Measurements for Embedded Industrial Applications
Leis, John and Buttsworth, David. 2017. "Determining the Convergence of Synchronous Measurements for Embedded Industrial Applications." IEEE Transactions on Industrial Electronics. 64 (9), pp. 7392-7398. https://doi.org/10.1109/TIE.2016.2638798
A Robust Method for Tuning Photoacoustic Gas Detectors
Leis, John and Buttsworth, David. 2018. "A Robust Method for Tuning Photoacoustic Gas Detectors." IEEE Transactions on Industrial Electronics. 65 (5), pp. 4338-4346. https://doi.org/10.1109/TIE.2017.2762636
Analysis of hypersonic model pitching experiments in the TUSQ facility
Stern, Nathan, Jahn, Ingo, Choudbhury, Rishabh, Zander, Fabian, Steelant, Johan and Buttsworth, David R.. 2018. "Analysis of hypersonic model pitching experiments in the TUSQ facility." International Conference on High-Speed Vehicle Science and Technology 2018 (HiSST 2018). Moscow, Russia 26 - 29 Nov 2018
Simulation in the Loop Control of a Planar Hypersonic Wing with a Rigid Control Surface
Jahn, I. H., Zander, F., Stern, N. and Buttsworth, D. R.. 2018. "Simulation in the Loop Control of a Planar Hypersonic Wing with a Rigid Control Surface." 21st Australasian Fluid Mechanics Conference (AFMC 2018). Adelaide, Australia 10 - 13 Dec 2018 Australia. Australasian Fluid Mechanics Society.
A temperature compensation technique for near-infrared methane gas threshold detection
Leis, John and Buttsworth, David. 2016. "A temperature compensation technique for near-infrared methane gas threshold detection." IEEE Transactions on Industrial Electronics. 63 (3), pp. 1813-1821. https://doi.org/10.1109/TIE.2015.2495292
Investigation into thin layer drying rates and equilibrium moisture content of abattoir paunch waste
Spence, Jennifer, Buttsworth, David, McCabe, Bernadette K., Baillie, Craig, Antille, Diogenes L. and Carter, Brad. 2018. "Investigation into thin layer drying rates and equilibrium moisture content of abattoir paunch waste." Renewable Energy. 124, pp. 95-102. https://doi.org/10.1016/j.renene.2017.07.082
Absolute concentration measurements of OH* in an axisymmetric hydrogen-air premixed flame adjacent to a hot graphite model
Zhao, M. M., Choudhury, R., Malpress, R. and Buttsworth, D. R.. 2016. "Absolute concentration measurements of OH* in an axisymmetric hydrogen-air premixed flame adjacent to a hot graphite model." 20th Australasian Fluid Mechanics Conference (AFMC 2016). Perth, Australia 05 - 08 Dec 2016 Australia.
Visible and near infrared spectroscopy of Hayabusa re-entry using semi-autonomous tracking
McIntyre, T. J., Khan, R., Eichmann, T. N., Upcroft, B. and Buttsworth, D.. 2012. "Visible and near infrared spectroscopy of Hayabusa re-entry using semi-autonomous tracking ." 50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition: Advancing the Science of Flight Technology (AIAA 2012) . Nashville, United States 09 - 12 Jan 2012 Reston, VA. United States.
Development of a photo-acoustic trace gas sensor
Kelly, C., Leis, J. and Buttsworth, D.. 2011. "Development of a photo-acoustic trace gas sensor." Mee, David J. and Hillock, Ian D. M. (ed.) 2011 Conference of the Australian Acoustical Society (Acoustics 2011): Breaking New Ground. Gold Coast, Australia 02 - 04 Nov 2011 Australia. Australian Acoustical Society.
Temperature and heat flux measurement on hot models in short-duration facilities
Kraetzig, Benjamin, Buttsworth, David R., Zander, Fabian and Loehle, Stefan. 2014. "Temperature and heat flux measurement on hot models in short-duration facilities." Journal of Thermophysics and Heat Transfer. 29 (1), pp. 37-46. https://doi.org/10.2514/1.T4309
Mixing layer effects on the entrainment ratio in steam ejectors through ideal gas computational simulations
Ariafar, Kavous, Buttsworth, David, Al-Doori, Ghassan and Sharifi, Navid. 2016. "Mixing layer effects on the entrainment ratio in steam ejectors through ideal gas computational simulations." Energy. 95, pp. 380-392. https://doi.org/10.1016/j.energy.2015.12.027
Convergence in synchronous measurements
Leis, John and Buttsworth, David. 2015. "Convergence in synchronous measurements." Wysocki, Beata J. and Wysocki, Tadeusz A. (ed.) 2014 8th International Conference on Signal Processing and Communication Systems (ICSPCS 2014). Gold Coast, Australia 15 - 17 Dec 2014 United States. https://doi.org/10.1109/ICSPCS.2014.7021090
Effect of mixing on the performance of wet steam ejectors
Ariafar, Kavous, Buttsworth, David, Al-Doori, Ghassan and Malpress, Ray. 2015. "Effect of mixing on the performance of wet steam ejectors." Energy. 93 (2), pp. 2030-2041. https://doi.org/10.1016/j.energy.2015.10.082
Experimental and Analytical Investigation of Hypersonic Fluid-Structure-Interactions on a Pitching Flat Plate Airfoil
Yamada, Kenji, Jahn, Ingo and Buttsworth, David. 2016. "Experimental and Analytical Investigation of Hypersonic Fluid-Structure-Interactions on a Pitching Flat Plate Airfoil." Applied Mechanics and Materials. 846, pp. 157-162. https://doi.org/10.4028/www.scientific.net/AMM.846.157
Variable length connecting rod
Malpress, Ray. 2016. Variable length connecting rod. 2012283734
Detection of potentially explosive methane levels using a solid-state infrared source
Leis, John, Buttsworth, David, Snook, Chris and Holmes, Graham. 2014. "Detection of potentially explosive methane levels using a solid-state infrared source." IEEE Transactions on Instrumentation and Measurement. 63 (12), pp. 3088-3095. https://doi.org/10.1109/TIM.2014.2327457
Ejector primary nozzle steam condensation: area ratio effects and mixing layer development
Ariafar, Kavous, Buttsworth, David, Sharifi, Navid and Malpress, Ray. 2014. "Ejector primary nozzle steam condensation: area ratio effects and mixing layer development ." Applied Thermal Engineering. 71 (1), pp. 519-527. https://doi.org/10.1016/j.applthermaleng.2014.06.038
Hot-wall reentry testing in hypersonic impulse facilities
Zander, F., Morgan, R. G., Sheikh, U., Buttsworth, D. R. and Teakle, P. R.. 2013. "Hot-wall reentry testing in hypersonic impulse facilities." AIAA Journal: devoted to aerospace research and development. 51 (2), pp. 476-484. https://doi.org/10.2514/1.J051867
Hypersonic wind-tunnel free-flying experiments with onboard instrumentation
Mudford, Neil R., O'Byrne, Sean, Neely, Andrew, Buttsworth, David and Balage, Sudantha. 2015. "Hypersonic wind-tunnel free-flying experiments with onboard instrumentation." Journal of Spacecraft and Rockets. 52 (1), pp. 231-242. https://doi.org/10.2514/1.A32887
Evolution of plasma species and heat – shield temperatures from Hayabusa Reentry Observation
Kraetzig, Benjamin, Lohle, Stefan and Buttsworth, David. 2014. "Evolution of plasma species and heat – shield temperatures from Hayabusa Reentry Observation." Journal of Spacecraft and Rockets. 51 (3), pp. 823-837. https://doi.org/10.2514/1.A32854
Visible and near infrared spectroscopy of Hayabusa Reentry using semi-autonomous tracking
McIntyre, Timothy, Khan, Razmi, Eichmann, Troy, Upcroft, Ben and Buttsworth, David. 2014. "Visible and near infrared spectroscopy of Hayabusa Reentry using semi-autonomous tracking." Journal of Spacecraft and Rockets. 51 (1), pp. 31-38. https://doi.org/10.2514/1.A32497
Instantaneous heat flux simulation of a motored reciprocating engine: unsteady thermal boundary layer with variable turbulent thermal conductivity
Agrira, Abdalla, Buttsworth, David R. and Said, Mior A.. 2014. "Instantaneous heat flux simulation of a motored reciprocating engine: unsteady thermal boundary layer with variable turbulent thermal conductivity." Journal of Heat Transfer: Transactions of the ASME. 136 (3), pp. 031703 1-031703 9. https://doi.org/10.1115/1.4025639
Pitot pressure measurements in a supersonic steam jet
Al-Doori, Ghassan and Buttsworth, David R.. 2014. "Pitot pressure measurements in a supersonic steam jet." Experimental Thermal and Fluid Science. 58, pp. 56-61. https://doi.org/10.1016/j.expthermflusci.2014.05.012
Isokinetic total water content probe in a naturally aspirating configuration: initial aerodynamic design and testing
Davison, Craig, MacLeod, James D., Strapp, J. Walter and Buttsworth, David R.. 2008. "Isokinetic total water content probe in a naturally aspirating configuration: initial aerodynamic design and testing ." 46th AIAA Aerospace Sciences Meeting and Exhibit (AIAA 2008). Reno, United States 07 - 10 Jan 2008 Reston, VA. United States. https://doi.org/10.2514/6.2008-435
Stagnation temperature in a cold hypersonic flow produced by a light free piston compression facility
Widodo, Agung and Buttsworth, David. 2013. "Stagnation temperature in a cold hypersonic flow produced by a light free piston compression facility." Experiments in Fluids: experimental methods and their applications to fluid flow. 54 (4), p. 1486. https://doi.org/10.1007/s00348-013-1486-6
Hot wall testing methodology for impulse facilities
Zander, F., Morgan, R. G., Sheikh, U. A., Buttsworth, D. R. and Teakle, P. R.. 2013. "Hot wall testing methodology for impulse facilities." Stallings, David (ed.) 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference (AIAA 2012). Tours, France 24 - 28 Sep 2012 Reston, VA. United States. https://doi.org/10.2514/6.2012-5953
Near-ultraviolet emission spectroscopy of the Hayabusa reentry
Buttsworth, David, Morgan, Richard and Jenniskens, Peter. 2013. "Near-ultraviolet emission spectroscopy of the Hayabusa reentry." Journal of Spacecraft and Rockets. 50 (6), pp. 1109-1120. https://doi.org/10.2514/1.A32500
Radiometric temperature analysis of the Hayabusa spacecraft re-entry
Eichmann, T. N., Khan, R., McIntyre, T. J., Jacobs, C., Porat, H., Buttsworth, D. and Upcroft, B.. 2012. "Radiometric temperature analysis of the Hayabusa spacecraft re-entry." Kontis, Konstantinos (ed.) 28th International Symposium on Shock Waves (ISSW 28). Manchester, United Kingdom 17 - 22 Jul 2011 Heidelberg, Germany. https://doi.org/10.1007/978-3-642-25688-2_77
Application of photogrammetry at USQ hypersonic wind tunnel
Chong, Albert K., Buttsworth, David, Mudford, Neil, Jokic, Michael, Balage, Sudantha and O'Bryne, Sean. 2012. "Application of photogrammetry at USQ hypersonic wind tunnel ." Short, Wayne and Cairns, Iver (ed.) 11th Australian Space Science Conference (ASSC 2011). Canberra, Australia 26 - 29 Sep 2011 Sydney, Australia.
Optically addressed pressure sensors for transient gas dynamics: calibration of a preliminary design
Sharifian, S. A. and Buttsworth, D. R.. 2001. "Optically addressed pressure sensors for transient gas dynamics: calibration of a preliminary design." Dally, B. B. (ed.) 14th Australasian Fluid Mechanics Conference (AFMC 2001) . Adelaide, South Australia 09 - 14 Dec 2001 Adelaide, South Australia.
Reducing the mechanical hysteresis problem in optically-addressed diaphragm pressure sensors
Sharifian, S. A. and Buttsworth, D. R.. 2002. "Reducing the mechanical hysteresis problem in optically-addressed diaphragm pressure sensors." Tomasini, Enrico (ed.) SPIE 2002: Vibration Measurements by Laser Techniques: Advances and Applications. Ancona, Italy 18 - 21 Jun 2002 Washington, USA. https://doi.org/10.1117/12.468141
Sampling, quantization and computational aspects of the quadrature lock-in amplifier
Leis, John, Kelly, Christopher and Buttsworth, David. 2012. "Sampling, quantization and computational aspects of the quadrature lock-in amplifier." Wysocki, Beata J. and Wysocki, Tadeusz (ed.) 2012 6th International Conference on Signal Processing and Communication Systems (ICSPCS 2012). Gold Coast, Australia 12 - 14 Dec 2012 United States. IEEE (Institute of Electrical and Electronics Engineers). https://doi.org/10.1109/ICSPCS.2012.6507974
Near ultraviolet emission spectroscopy of the Hayabusa re-entry
Buttsworth, David, Jacobs, P., Morgan, R. G. and Jenniskens, Peter. 2012. "Near ultraviolet emission spectroscopy of the Hayabusa re-entry ." 50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition: Advancing the Science of Flight Technology (AIAA 2012) . Nashville, United States 09 - 12 Jan 2012 Reston, VA. United States. https://doi.org/10.2514/6.2012-1297
Initial development of ice crystal ice accretion at conditions related to turbofan operation at high Altitude
Saleh, Khalid Hashim. 2013. Initial development of ice crystal ice accretion at conditions related to turbofan operation at high Altitude. PhD Thesis Doctor of Philosophy. University of Southern Queensland.
Image-based visual servoing for the super-orbital re-entry of Hayabusa spacecraft
Khan, Razmi, Eichmann, Troy, Buttsworth, David and Upcroft, Ben. 2011. "Image-based visual servoing for the super-orbital re-entry of Hayabusa spacecraft ." 2011 Australasian Conference on Robotics and Automation (ACRA 2011) . Melbourne, Australia 07 - 09 Dec 2011 Sydney, Australia.
Analytical and experimental study of pressure dynamics in a pulsed water jet device
Dehkhoda, Sevda, Hood, Michael, Alehossein, Habib and Buttsworth, David. 2012. "Analytical and experimental study of pressure dynamics in a pulsed water jet device." Flow, Turbulence and Combustion. 89 (1), pp. 97-119. https://doi.org/10.1007/s10494-012-9393-0
Simplified digital lock-in amplifier algorithm
Leis, J., Martin, P. and Buttsworth, D.. 2012. "Simplified digital lock-in amplifier algorithm." Electronics Letters. 48 (5), pp. 259-261. https://doi.org/10.1049/el.2012.0193
A broadband multisensor approach to gas monitoring
Leis, John, Buttsworth, David and Martin, Philip. 2011. "A broadband multisensor approach to gas monitoring." O'Neill, Philippa and Thiagarajan, Krish (ed.) 6th Australian Conference on Laser Diagnostics in Fluid Mechanics and Combustion. Canberra, Australia 05 - 07 Dec 2011 Sydney, Australia.
Engine performance and emission analysis of LPG-SI engine with the aid of artificial neural network
Yusaf, T., Saleh, K. H. and Said, M. A.. 2011. "Engine performance and emission analysis of LPG-SI engine with the aid of artificial neural network." Proceedings of the Institution of Mechanical Engineers Part A: Journal of Power and Energy. 225 (5), pp. 591-600. https://doi.org/10.1177/0957650911402546
Simulation of instantaneous heat transfer in spark ignition internal combustion engines: unsteady thermal boundary layer modeling
Buttsworth, David R., Agrira, Abdalla, Malpress, Ray and Yusaf, Talal. 2011. "Simulation of instantaneous heat transfer in spark ignition internal combustion engines: unsteady thermal boundary layer modeling." Journal of Engineering for Gas Turbines and Power: Transactions of the ASME. 133 (2), pp. 1-5. https://doi.org/10.1115/1.4001080
Development of a Ludwieg tube with free piston compression heating for scramjet inlet starting experiments
Buttsworth, David R. and Smart, Michael K.. 2010. "Development of a Ludwieg tube with free piston compression heating for scramjet inlet starting experiments ." 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition (AIAA 2010). Orlando, United States 04 - 07 Jan 2010 Reston, VA. United States.
Spark ignition internal combustion engine efficiency improvement - a variable compression ratio option
Malpress, Ray. 2011. Spark ignition internal combustion engine efficiency improvement - a variable compression ratio option. PhD Thesis Doctor of Philosophy. University of Southern Queensland.
Direct full surface skin friction measurement using nematic liquid crystal techniques
Buttsworth, D. R., Elston, S. J. and Jones, T. V.. 1998. "Direct full surface skin friction measurement using nematic liquid crystal techniques." Journal of Turbomachinery. 120 (4), pp. 847-853. https://doi.org/10.1115/1.2841798
Experiments on oblique shock interactions with planar mixing regions
Buttsworth, D. R., Morgan, R. G. and Jones, Terry V.. 1997. "Experiments on oblique shock interactions with planar mixing regions." AIAA Journal: devoted to aerospace research and development. 35 (11), pp. 1774-1777. https://doi.org/10.2514/2.26
Student views on hardware-based problem solving activities for external and on-campus teams
Buttsworth, David R. and Malpress, Ray. 2009. "Student views on hardware-based problem solving activities for external and on-campus teams." Kestell, Colin, Grainger, Steven and Cheung, John (ed.) 20th Annual Conference for the Australasian Association of Engineering Education (AAEE 2009). Adelaide, Australia 06 - 09 Dec 2009 Adelaide, Australia.
Air motor for improved engine brake efficiency: design and preliminary experiments
Malpress, R. and Buttsworth, D. R.. 2009. "Air motor for improved engine brake efficiency: design and preliminary experiments." Abidin, Izham Bin Datuk Zainal (ed.) 3rd International Conference on Energy and Environment (ICEE 2009): Advancement Towards Global Sustainability. Malacca, Malaysia 07 - 08 Dec 2009 Malaysia. https://doi.org/10.1109/ICEENVIRON.2009.5398658
A study to identify relationships between the grade given for an undergraduate problem solving course and the students' reported satisfaction levels
Malpress, Ray and Buttsworth, David R.. 2009. "A study to identify relationships between the grade given for an undergraduate problem solving course and the students' reported satisfaction levels." Kestell, Colin, Grainger, Steven and Cheung, John (ed.) 20th Annual Conference for the Australasian Association of Engineering Education (AAEE 2009). Adelaide, Australia 06 - 09 Dec 2009 Adelaide, Australia.
Simulation of instantaneous heat transfer in spark ignition internal combustion engines: unsteady thermal boundary layer modelling
Buttsworth, David R., Agrira, Abdalla, Malpress, Ray and Yusaf, Talal. 2009. "Simulation of instantaneous heat transfer in spark ignition internal combustion engines: unsteady thermal boundary layer modelling." Callahan, Tim (ed.) ASME Internal Combustion Engine Division Fall Technical Conference (ICEF 2009). Lucerne, Switzerland 27 - 30 Sep 2009 United States. https://doi.org/10.1115/ICEF2009-14056
A comparison between two-position variable compression ratio and continuously variable compression ratio engines using numerical simulation
Malpress, Ray and Buttsworth, David R.. 2009. "A comparison between two-position variable compression ratio and continuously variable compression ratio engines using numerical simulation." Callahan, Tim (ed.) ASME Internal Combustion Engine Division Fall Technical Conference (ICEF 2009). Lucerne, Switzerland 27 - 30 Sep 2009 United States. https://doi.org/10.1115/ICEF2009-14042
Deflection of a pretensioned circular diaphragm due to aerothermal loading
Sharifian, S. Ahmad and Buttsworth, David R.. 2000. "Deflection of a pretensioned circular diaphragm due to aerothermal loading." May, R. L., Grundy, I. H. and Fitz-Gerald, G. F. (ed.) 4th Biennial Engineering Mathematics and Applications Conference : Mathematics and Engineering: An Innovative Partnership (EMAC 2000). Melbourne, Australia 10 - 13 Sep 2000 Melbourne, Australia.
Assessment of effective thermal product of surface junction thermocouples on millisecond and microsecond time scales
Buttsworth, David R.. 2001. "Assessment of effective thermal product of surface junction thermocouples on millisecond and microsecond time scales." Experimental Thermal and Fluid Science. 25 (6), pp. 409-420. https://doi.org/10.1016/S0894-1777(01)00093-0
Transient response of an erodable heat flux gauge using finite element analysis
Buttsworth, David R.. 2002. "Transient response of an erodable heat flux gauge using finite element analysis." Proceedings of the Institution of Mechanical Engineers Part D: Journal of Automobile Engineering. 216 (8), pp. 701-716. https://doi.org/10.1177/095440700221600808
Transient temperature probe measurements in a Mach 4 nitrogen jet
Buttsworth, David R. and Jones, Terry V.. 2004. "Transient temperature probe measurements in a Mach 4 nitrogen jet." Experiments in Fluids: experimental methods and their applications to fluid flow. 37 (1), pp. 137-145. https://doi.org/10.1007/s00348-004-0793-3
Heat transfer during transient compression: measurements and simulations
Buttsworth, David R.. 2002. "Heat transfer during transient compression: measurements and simulations ." Shock Waves: an international journal on shock waves, detonations and explosions. 12 (1), pp. 87-91. https://doi.org/10.1007/s00193-002-0140-7
Finite element analysis of eroding type surface thermocouple with application to engine heat flux measurement
Wang, Xiaowei, Stone, C. Richard, Buttsworth, David R., Stevens, Robert and Arita, Yoshi. 2006. "Finite element analysis of eroding type surface thermocouple with application to engine heat flux measurement." SAE 2006 World Conference and Exhibition (2006). Detroit, United States Apr 2006 USA.
Measurement and simulation of the interface in a low-enthalpy shock tunnel
Buttsworth, David R., Goozee, Richard J. and Jacobs, Peter A.. 2006. "Measurement and simulation of the interface in a low-enthalpy shock tunnel." 14th International Space Planes and Hypersonic Systems and Technologies Conference (AIAA/AHI 2006). Canberra, Australia 06 - 09 Nov 2006 Reston, VA, United States.
Simulation of a complete reflected shock tunnel showing a vortex mechanism for flow contamination
Goozee, R. J., Jacobs, P. A. and Buttsworth, D. R.. 2006. "Simulation of a complete reflected shock tunnel showing a vortex mechanism for flow contamination." Shock Waves: an international journal on shock waves, detonations and explosions. 15 (3-4), pp. 165-176. https://doi.org/10.1007/s00193-006-0015-4
Eroding ribbon thermocouples: impulse response and transient heat flux analysis
Buttsworth, David R., Stevens, Robert and Stone, C. Richard. 2005. "Eroding ribbon thermocouples: impulse response and transient heat flux analysis." Measurement Science and Technology. 16 (7), pp. 1487-1494. https://doi.org/10.1088/0957-0233/16/7/011
The generation and measurement of high temperature radiating flows in a high enthalpy pulsed facility
McIntyre, Timothy J., Eichmann, Troy N., Mallon, Michael, Potter, Daniel, Brandis, Aaron, Jacobs, Carolyn, Morgan, Richard, Jacobs, Peter and Buttsworth, David R.. 2009. "The generation and measurement of high temperature radiating flows in a high enthalpy pulsed facility ." Lacoste, H. and Ouwehand, L. (ed.) 3rd International Workshop on Radiation of High Temperature Gases in Atmospheric Entry. Heraklion, Greece 30 Sep - 03 Oct 2008 Noordwijk, Netherlands.
Internal combustion engines: a role to fill for transport in an energy conscious environment
Malpress, Ray and Buttsworth, David. 2010. "Internal combustion engines: a role to fill for transport in an energy conscious environment." Goh, Steven C. and Wang, Hao (ed.) 2010 Southern Region Engineering Conference (SREC 2010). Toowoomba, Australia 11 - 12 Nov 2010 Toowoomba, Australia.
Impulse facilities for the simulation of hypersonic radiating flows
Morgan, R. G., McIntyre, T. J., Buttsworth, D. R., Jacobs, P. A., Potter, D. F., Brandis, A. M., Gollan, R. J., Jacobs, C. M., Capra, B. R., McGilvray, M. and Eichmann, T. N.. 2008. "Impulse facilities for the simulation of hypersonic radiating flows ." 38th AIAA Fluid Dynamics Conference and Exhibit (AIAA 2008). Seattle, United States 23 - 26 Jun 2008 Reston, VA. United States.
Expansion tunnel radiation experiments to support Hayabusa re-entry observations
Buttsworth, David, D'Souza, Mary, Potter, Daniel, Eichmann, Troy, Mudford, Neil, McGilvray, Matthew, McIntyre, Timothy J., Jacobs, Peter and Morgan, Richard. 2010. "Expansion tunnel radiation experiments to support Hayabusa re-entry observations." 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition (AIAA 2010). Orlando, United States 04 - 07 Jan 2010 Reston, VA, United States.
Cranz-Schardin visualisation of a hypersonic cone with gas injection
Buttsworth, David R. and Sercombe, David B.. 2009. "Cranz-Schardin visualisation of a hypersonic cone with gas injection ." Klein, Harald (ed.) 28th International Congress on High-Speed Imaging and Photonics. Canberra, Australia 09 - 14 Nov 2008 Bellingham, WA, United States . https://doi.org/10.1117/12.822032
Super-orbital re-entry in Australia: laboratory measurement, simulation and flight observation [Keynote lecture]
Buttsworth, David, Jacobs, Peter, Potter, Daniel, Mudford, Neil, D'Souza, Mary, Eichmann, Troy, Jenniskens, Peter, McIntyre, Tim, Jokic, Michael, Jacobs, Carolyn, Upcroft, Ben, Khan, Razmi, Porat, Hadas, Neely, Andrew and Lohle, Stefan. 2012. "Super-orbital re-entry in Australia: laboratory measurement, simulation and flight observation [Keynote lecture]." Kontis, Konstantinos (ed.) 28th International Symposium on Shock Waves (ISSW 28). Manchester, United Kingdom 17 - 22 Jul 2011 Heidelberg, Germany. https://doi.org/10.1007/978-3-642-25688-2_5
Ludwieg tunnel facility with free piston compression heating for supersonic and hypersonic testing
Buttsworth, David R.. 2010. "Ludwieg tunnel facility with free piston compression heating for supersonic and hypersonic testing." Short, Wayne and Cairns, Iver (ed.) 9th Australian Space Science Conference (ASSC 2009). Sydney, Australia 28 - 30 Sep 2009 Sydney, Australia.
CNG-diesel engine performance and exhaust emission analysis with the aid of artificial neural network
Yusaf, Talal F., Buttsworth, D. R., Saleh, Khalid H. and Yousif, B. F.. 2010. "CNG-diesel engine performance and exhaust emission analysis with the aid of artificial neural network." Applied Energy. 87 (5), pp. 1661-1669. https://doi.org/10.1016/j.apenergy.2009.10.009
Assessment of an eccentric link in the connecting rod of a spark ignition engine intended for variable compression ratio operation
Malpress, Ray and Buttsworth, David. 2010. "Assessment of an eccentric link in the connecting rod of a spark ignition engine intended for variable compression ratio operation." Teh, Kian, Davies, Ian and Howard, Ian (ed.) 6th Australasian Congress on Applied Mechanics (ACAM 6). Perth, Western Australia 12 - 15 Dec 2010 Perth, Australia.
Experimental and modeling investigation of the performance characteristics on diesel HCCI with hydrogen additive - a review
Supeni, E. E., Yusaf, Talal, Wandel, Andrew P., Buttsworth, David R. and Noor, M. M.. 2010. "Experimental and modeling investigation of the performance characteristics on diesel HCCI with hydrogen additive - a review." 2nd National Conference in Mechanical Engineering Research and Postgraduate Studies. Kuantan, Malaysia 03 - 04 Dec 2010 Malaysia.
Development of a small icing wind tunnel for simulating the initial stages of solid phase ice accretion
Saleh, Khalid, Buttsworth, David and Yusaf, Talal. 2010. "Development of a small icing wind tunnel for simulating the initial stages of solid phase ice accretion." Mallinson, G. D. and Cater, J. E. (ed.) 17th Australasian Fluid Mechanics Conference (AFMC 2010). Auckland, New Zealand 05 - 09 Dec 2010 Auckland, New Zealand.
Stagnation temperature measurements in the USQ hypersonic wind tunnel
Widodo, A. S. and Buttsworth, D. R.. 2010. "Stagnation temperature measurements in the USQ hypersonic wind tunnel." Mallinson, G. D. and Cater, J. E. (ed.) 17th Australasian Fluid Mechanics Conference (AFMC 2010). Auckland, New Zealand 05 - 09 Dec 2010 Auckland, New Zealand. https://doi.org/10.1038/190778a0
Double-layered metal mesh screens to contain or exclude thermal radiation from bush fires
Sharifian, Ahmad and Buttsworth, David. 2010. "Double-layered metal mesh screens to contain or exclude thermal radiation from bush fires." Journal of Fire Protection Engineering. 20 (4), pp. 291-311. https://doi.org/10.1177/1042391510367366
Heat transfer in an ultrasonic processing cell: preliminary measurements
Yusaf, Talal, Buttsworth, David R. and Deeth, Hilton C.. 2003. "Heat transfer in an ultrasonic processing cell: preliminary measurements." Emirates Journal of Agricultural Sciences . 15 (2), pp. 80-86.
Small scale power generation using a dual fuel system
Yusaf, Talal, Al-Atabi, Mushtak Talib Ali and Buttsworth, David R.. 2003. "Small scale power generation using a dual fuel system." RERIC International Energy Journal. 4 (2), pp. 129-138.
Multizone internal combustion engine modelling: initial assessment of a simulation tool developed in Matlab
Buttsworth, David. 2009. "Multizone internal combustion engine modelling: initial assessment of a simulation tool developed in Matlab." Abidin, Izham Bin Datuk Zainal (ed.) 3rd International Conference on Energy and Environment (ICEE 2009): Advancement Towards Global Sustainability. Malacca, Malaysia 07 - 08 Dec 2009 Selangor, Malaysia. https://doi.org/10.1109/ICEENVIRON.2009.5398624
Premature ignition in scramjets with intake injection: a preliminary laminar mixing layer simulation
Buttsworth, David R. and Jacobs, Peter A.. 2009. "Premature ignition in scramjets with intake injection: a preliminary laminar mixing layer simulation." Klimenko, Alexander Y., Cleary, Matthew J., Feng, Bo, Rudolph, Victor, Boyce, Russell R., Wandel, Andrew P. and Clements, Rose (ed.) Australian Combustion Symposium (ACS 2009). Brisbane, Australia 02 - 04 Dec 2009 Brisbane, Australia.
Nitrous oxide decomposition for supersonic combustion experiments in the USQ Ludwieg tube facility
Buttsworth, D. R.. 2009. "Nitrous oxide decomposition for supersonic combustion experiments in the USQ Ludwieg tube facility." Klimenko, Alexander Y., Cleary, Matthew J., Feng, Bo, Rudolph, Victor, Boyce, Russell R., Wandel, Andrew P. and Clements, Rose (ed.) Australian Combustion Symposium (ACS 2009). Brisbane, Australia 02 - 04 Dec 2009 Brisbane, Australia.
Deduction of temperature fluctuations in transient compression wind tunnels using incompressible turbulent flow data
Widodo, A. and Buttsworth, D. R.. 2009. "Deduction of temperature fluctuations in transient compression wind tunnels using incompressible turbulent flow data." Abidin, Izham Bin Datuk Zainal (ed.) 3rd International Conference on Energy and Environment (ICEE 2009): Advancement Towards Global Sustainability. Malacca, Malaysia 07 - 08 Dec 2009 Selangor, Malaysia. https://doi.org/10.1109/ICEENVIRON.2009.5398678
Theoretical and experimental investigation of SI engine performance and exhaust emissions using ethanol-gasoline blended fuels
Yusaf, Talal, Najafi, G. and Buttsworth, David. 2009. "Theoretical and experimental investigation of SI engine performance and exhaust emissions using ethanol-gasoline blended fuels." Abidin, Izham Bin Datuk Zainal (ed.) 3rd International Conference on Energy and Environment (ICEE 2009): Advancement Towards Global Sustainability. Malacca, Malaysia 07 - 08 Dec 2009 Selangor, Malaysia. https://doi.org/10.1109/ICEENVIRON.2009.5398648
A review of radiation heat transfer measurement for diesel engines using the two-colour method
Said, Mior A., Buttsworth, D. R. and Yusaf, T. F.. 2009. "A review of radiation heat transfer measurement for diesel engines using the two-colour method." 3rd International Conference on Energy and Environment (ICEE 2009): Advancement Towards Global Sustainability. Malacca, Malaysia 07 - 08 Dec 2009 Selangor, Malaysia. https://doi.org/10.1109/ICEENVIRON.2009.5398645
Discrete particle simulation for the initial stages of ice accretion in aircraft engines: initial model development
Buttsworth, David, Saleh, Khalid and Yusaf, Talal. 2009. "Discrete particle simulation for the initial stages of ice accretion in aircraft engines: initial model development." Abidin, Izham Bin Datuk Zainal (ed.) 3rd International Conference on Energy and Environment (ICEE 2009): Advancement Towards Global Sustainability. Malacca, Malaysia 07 - 08 Dec 2009 Piscataway, NJ. United States. https://doi.org/10.1109/ICEENVIRON.2009.5398655
Instantaneous heat flux simulation of S.I. engines: comparison of unsteady thermal boundary layer modelling with experimental data
Agrira, Abdalla, Buttsworth, David R. and Yusaf, Talal. 2009. "Instantaneous heat flux simulation of S.I. engines: comparison of unsteady thermal boundary layer modelling with experimental data ." 3rd International Conference on Energy and Environment (ICEE 2009): Advancement Towards Global Sustainability. Malacca, Malaysia 07 - 08 Dec 2009 Selangor, Malaysia. https://doi.org/10.1109/ICEENVIRON.2009.5398679
Hardware-based engineering problem solving for on-campus and external teams
Buttsworth, David R., Malpress, Ray and Phythian, Mark. 2008. "Hardware-based engineering problem solving for on-campus and external teams." Mann, Llewellyn, Thompson, Adam and Howard, Prue (ed.) 19th Annual Conference of the Australasian Association for Engineering Education (AAEE 2008). Yeppoon, Australia 07 - 10 Dec 2008 Canberra, Australia.
Performance and exhaust emissions of a gasoline engine with ethanol blended gasoline fuels using artificial neural network
Najafi, G., Ghobadian, B., Tavakoli, T., Buttsworth, D. R., Yusaf, T. F. and Faizollahnejad, M.. 2009. "Performance and exhaust emissions of a gasoline engine with ethanol blended gasoline fuels using artificial neural network ." Applied Energy. 86 (5), pp. 630-639. https://doi.org/10.1016/j.apenergy.2008.09.017
Direct radiation from wildfires through square woven screens
Sharifian, Ahmad and Buttsworth, David R.. 2009. "Direct radiation from wildfires through square woven screens." ASME 2008 Summer Heat Transfer Conference (HT 2008). Jacksonville, United States 10 - 14 Aug 2008 Jacksonville, FL. United States. https://doi.org/10.1115/HT2008-56270
Infrastructure for remotely accessible laboratories at the University of Southern Queensland
Ahfock, Tony, Buttsworth, David, Phythian, Mark and Maxwell, Andrew. 2008. "Infrastructure for remotely accessible laboratories at the University of Southern Queensland." Mann, Llewellyn, Thompson, Adam and Howard, Prue (ed.) 19th Annual Conference of the Australasian Association for Engineering Education (AAEE 2008). Yeppoon, Australia 07 - 10 Dec 2008 Canberra, Australia.
Impact on a water filled cylinder
Golshani, Aliakbar, Tran-Cong, Thanh and Buttsworth, David. 2008. "Impact on a water filled cylinder." Ashida, Fumihiro and Sakata, Sei-ichiro (ed.) ACMFMS 2008: Asian Conference on Mechanics of Functional Materials and Structures. Matsue, Japan 31 Oct - 03 Nov 2008 Japan.
Thermal effects on fibre optic pressure sensor during free piston compression experiments
Sharifian, S. A. and Buttsworth, D. R.. 2005. "Thermal effects on fibre optic pressure sensor during free piston compression experiments." 8th International Symposium on Fluid Control, Measurement and Visualization (8th FLUCOME). Chengdu, China 22 - 25 Aug 2005
Evaluation of glued-diaphragm fibre optic pressure sensors in a shock tube
Sharifian, S. Ahmad and Buttsworth, David R.. 2007. "Evaluation of glued-diaphragm fibre optic pressure sensors in a shock tube." Shock Waves: an international journal on shock waves, detonations and explosions. 16 (3), pp. 189-197. https://doi.org/10.1007/s00193-006-0062-x
Impulse facility simulation of hypervelocity radiating flows
Morgan, R. G., McIntyre, T. J., Jacobs, P. A., Buttsworth, D. R., Macrossan, M. N., Gollan, R. J., Capra, B. R., Brandis, A. M., Potter, D., Eichmann, T., Jacobs, C. M., McGilvray, M., van Diem, D. and Scott, M. P.. 2006. "Impulse facility simulation of hypervelocity radiating flows." 2nd International Workshop on Radiation of High Temperature Gases in Atmospheric Entry. Rome, Italy 06 - 08 Sep 2006 Noordwijk, Netherlands.
Modelling the static thermal sensitivity of diaphragm-based fibre optic pressure sensors
Sharifian, Ahmad, Watson, Stuart, Buttsworth, David R. and Barton, James. 2007. "Modelling the static thermal sensitivity of diaphragm-based fibre optic pressure sensors." Chandratilleke, Tilak T. and Narayanaswamy, Ramesh (ed.) 8th Australasian Heat and Mass Transfer Conference. Perth, Australia 26 - 29 Jul 2005 Redding, CT, USA.
Minimum safe standoff distance for protection from bushfire radiation by commercial metal meshes
Sharifian, Ahmad and Buttsworth, David R.. 2007. "Minimum safe standoff distance for protection from bushfire radiation by commercial metal meshes." Chandratilleke, Tilak T. and Narayanaswamy, Ramesh (ed.) 8th Australasian Heat and Mass Transfer Conference. Perth, Australia 26 - 29 Jul 2005 Redding, CT, USA.
Computational simulation of the wind-force on metal meshes
Sharifian, Ahmad and Buttsworth, David R.. 2007. "Computational simulation of the wind-force on metal meshes." Jacobs, Peter A., McIntyre, Tim, Cleary, Matthew J., Buttsworth, David R., Mee, David, Clements, Rose, Morgan, Richard and Lemckert, Charles (ed.) 16th Australasian Fluid Mechanics Conference (AFMC 2007). Gold Coast, Australia 03 - 07 Dec 2007 Brisbane, Australia.
Evaporator design for an isokinetic total water content probe in a naturally aspirating configuration
Buttsworth, D. R., Davison, C., MacLeod, J. D. and Strapp, J. W.. 2007. "Evaporator design for an isokinetic total water content probe in a naturally aspirating configuration." Jacobs, Peter, McIntyre, Tim, Cleary, Matthew, Buttsworth, David, Mee, David, Clements, Rose, Morgan, Richard and Lemckert, Charles (ed.) 16th Australasian Fluid Mechanics Conference (AFMC 2007). Gold Coast, Australia 03 - 07 Dec 2007 Brisbane, Australia.
A new internal combustion engine configuration: opposed pistons with crank offset
Malpress, Ray and Buttsworth, David R.. 2007. "A new internal combustion engine configuration: opposed pistons with crank offset." Jacobs, Peter A., McIntyre, Tim, Cleary, Matthew J., Buttsworth, David R., Mee, David, Clements, Rose, Morgan, Richard and Lemckert, Charles (ed.) 16th Australasian Fluid Mechanics Conference (AFMC 2007). Gold Coast, Australia 03 - 07 Dec 2007 Brisbane, Australia.
Measurement of unsteady gas temperature with optical fibre Fabry-Perot microsensors
Kilpatrick, J. M., MacPherson, W. N., Barton, J. S., Jones, J. D. C., Buttsworth, D. R., Jones, T. V., Chana, K. S. and Anderson, S. J.. 2002. "Measurement of unsteady gas temperature with optical fibre Fabry-Perot microsensors." Measurement Science and Technology. 13 (5), pp. 706-712. https://doi.org/10.1088/0957-0233/13/5/308
Directional sensitivity of skin friction measurements using nematic liquid crystal
Buttsworth, D. R., Elston, S. J. and Jones, Terry V.. 1998. "Directional sensitivity of skin friction measurements using nematic liquid crystal." Measurement Science and Technology. 9 (11), pp. 1856-1865. https://doi.org/10.1088/0957-0233/9/11/011
Total temperature measurements in a shock tunnel facility
Buttsworth, David R. and Jacobs, Peter A.. 1998. "Total temperature measurements in a shock tunnel facility." Thompson, M. C. and Hourigan, K. (ed.) 13th Australasian Fluid Mechanics Conference (AFMC 1998). Melbourne, Australia 13 - 18 Dec 1998 Melbourne, Australia.
High bandwidth stagnation temperature measurements in a Mach 6 gun tunnel flow
Buttsworth, David R. and Jones, Terry V.. 2003. "High bandwidth stagnation temperature measurements in a Mach 6 gun tunnel flow." Experimental Thermal and Fluid Science. 27 (2), pp. 177-186. https://doi.org/10.1016/S0894-1777(02)00281-9
Simulation of Oxford University gun tunnel performance using a quasi-one-dimensional model
Buttsworth, David R., Jacobs, Peter A. and Jones, Terry V.. 2002. "Simulation of Oxford University gun tunnel performance using a quasi-one-dimensional model." Shock Waves: an international journal on shock waves, detonations and explosions. 11 (5), pp. 377-383. https://doi.org/10.1007/s001930200121
Concentration probe measurements in a Mach 4 nonreacting hydrogen jet
Buttsworth, David R. and Jones, Terry V.. 2003. "Concentration probe measurements in a Mach 4 nonreacting hydrogen jet." Journal of Fluids Engineering. 125 (4), pp. 628-635. https://doi.org/10.1115/1.1595671
Characterisation of mixing rate due to high power ultrasound
Yusaf, Talal and Buttsworth, David R.. 2007. "Characterisation of mixing rate due to high power ultrasound." Ultrasonics Sonochemistry. 14 (2), pp. 266-274. https://doi.org/10.1016/j.ultsonch.2006.04.008
Radial conduction effects in transient heat transfer experiments
Buttsworth, David R. and Jones, T. V.. 1997. "Radial conduction effects in transient heat transfer experiments." Aeronautical Journal. 101 (1005), pp. 209-212.
A finite difference routine for the solution of transient one dimensional heat conduction problems with curvature and varying thermal properties
Buttsworth, David R.. 2001. A finite difference routine for the solution of transient one dimensional heat conduction problems with curvature and varying thermal properties. Toowoomba, Australia. University of Southern Queensland.
Spark ignition internal combustion engine modelling using Matlab
Buttsworth, David R.. 2002. Spark ignition internal combustion engine modelling using Matlab. Toowoomba, Australia. University of Southern Queensland.
A pulsed LED system for schlieren flow visualisation
Buttsworth, David R. and Ahfock, Tony L.. 2003. A pulsed LED system for schlieren flow visualisation. Toowoomba, Australia. University of Southern Queensland.