Dr Matthew Gaston is the Research Computing Manager for the Faculty of Engineering & IT. He provides support and offers high level advice concerning research and computing including computational methodologies, software and hardware specific to research needs. Provides specialised supervision to postgraduate research students both in planning and execution of the research projects.He is also responsible for Faculty's unique High Performance Computing Linux Cluster.Dr Gaston received his Bachelor of Engineering in Aeronautical Engineering in 1994 from the University of Sydney. He received his Ph.D. in Aerospace Engineering. Title: "A Study of Hypermixing Scramjet Fuel Injectors" in 2002 from the University of New South Wales, University College, ADFA.His current research interests include, Computational Fluid Dynamics of turbulent free surface flows, bubble dynamics, ventilation, and cavitation. He also has a strong interest in hypersonic and supersonic separated flows.
Houwing, F, Takayama, K, Zhang, Z, Hashimoto, T, Koremoto, K, Mitobe, H & Gaston, MJ 2005, 'Abel inversion of axially-symmetric shock wave flows', Shock Waves, vol. 14, no. 1-2, pp. 21-28.View/Download from: UTS OPUS or Publisher's site
Finite-fringe interferograms produced for axisymmetric shock wave flows are analyzed by Fourier transform fringe analysis and an Abel inversion method to produce density field data for the validation of numerical models. For the Abel inversion process, w
Kivva, T, Huynh, P, Gaston, MJ & Munn, D 2009, 'A numerical study of ventilation flow through a 3-dimensional room with a fan', Proceedings of the 6th International Symposium on Turbulence, Heat and Mass Transfer, The 6th International Symposium on Turbulence, Heat and Mass Transfer, Begell House Inc., Rome, Italy, pp. 1-10.
Numerical simulation of ventilation flow through a real-sized 3-dimensional room containing warm air has been performed, using a commercial CFD (Computational Fluid Dynamics) software package. The standard K-e turbulence model with wall functions is used. Fans flow rate only affects significantly the rooms temperature when this rate is low, corresponding to the free-convection-dominating regime. In forced-convection regime, increasing the flow rate results in little change in the rooms temperature, but can also enlarge pockets of undesirable warm air. Positioning a window higher gives rise to more efficient ventilation. An exhaust fan reduces the rooms average temperature significantly more than an in-blowing fan.
Brady, PD, Gaston, MJ & Reizes, J 2007, 'An application of a second order upwinding scheme for an implicit LES CFD Solver', Proceedings of the 16th Australasian Fluid Mechanics Conference, Australasian Fluid Mechanics Conference, School of Engineering, The University of Queensland, Surfers Paradise, Queensland, Australia, pp. 1071-1078.View/Download from: UTS OPUS
Mallinson, SG, Johnson, G, Gaston, MJ & Hong, G 2003, 'Three-Dimensional Numerical Simulation of Synthetic Jet Actuator Flows in a Microchannel', SPIE Proceeding of International Symposium on "Microelectronics, MEMS, and Nanotechnology, SPIE International Symposium on "Microelectronics, MEMS and Nanotechnology", International Society for Optical Engineering, Perth, Australia, pp. 341-350.View/Download from: UTS OPUS
The flow produced by a synthetic jet actuator located in one wall of a microchannel is investigated using computational fluid dynamics (CFD) simulations. In the case of no cross-flow, the ejected vortices travel to the opposite wall and replenish the remains of the vortex left behind from the previous cycle. When cross-flow is added, the vortex penetration increases with both stroke length and frequency. The flow in the cavity appears to be nearly symmetrical, with the greatest effect seen near the orifice. In the orifice itself, three-dimensional effects are more noticeable with decreasing jet-to-cross-flow momentum ratio. The microchannel cross-flow causes the vortices to tumble about their transverse axis, the effect of which also increases with decreasing jet-to-cross-flow momentum ratio.