Free-Piston Driver Optimisation for Simulation of High Mach Number Scramjet Flow Conditions
Scramjet-powered access to space is expected to entail flight between Mach 10 and 15, along a dynamic pressure ascent trajectory of up to 100 kPa . These flow conditions are characterised by total pressures of the order of gigapascals. Expansion tubes such as X2 and X3 at The University of Queensland (UQ), which add total enthalpy and total pressure to the test gas through an unsteady expansion, are the only current facilities which have the potential to achieve these very high total pressures.
KeywordsDriver Condition Driver Pressure Shock Speed Shock Tunnel Expansion Tube
Unable to display preview. Download preview PDF.
- 1.Hunt, J.L., Martin, J.G.: Rudiments and Methodology for Design and Analysis of Hypersonic Air-Breathing Vehicles. In: Curran, E.T., Murthy, S.N.B. (eds.) Scramjet Propulsion, vol. 189, pp. 939–978. AIAA (2000)Google Scholar
- 3.Jacobs, P.A.: L1d: A computer program for the simulation of transient-flow facilities. Report 1/99, Department of Mechanical Engineering, University of Queensland, Australia (1999)Google Scholar
- 4.Hornung, H.G., Belanger, J.: Role and Techniques of Ground Testing for Simulation of Flows up to Orbital Speed. AIAA 90-1377 (1990)Google Scholar
- 5.Morgan, R.G.: Free-Piston Driven Expansion Tubes. In: Handbook of Shock Waves, vol. 1, pp. 603–622 (2001)Google Scholar
- 8.Gildfind, D.: Stress Analysis of a New Lightweight Piston for X2. Report 2009/16, Department of Mechanical Engineering, The University of Queensland, Australia (2009)Google Scholar
- 9.Hornung, H.G.: The Piston Motion in a Free-Piston Driver for Shock Tubes and Tunnels. GALCIT Report FM 88-1, Graduate Aeronautical Laboratories, CALTECH (1988)Google Scholar