High Mach Number and Total Pressure Flow Conditions for Scramjet Testing
Scramjet-powered access to space is expected to entail flight between Mach 5 and 15, along a dynamic pressure ascent trajectory of up to 2,000 psf (96 kPa) . Scramjet engines typically need to be tested at sub-scale, even in the largest expansion tube facilities, and in these cases pressure-length (p-L) scaling is applied to maintain similarity for many flight parameters, including Reynolds number and binary reaction rates .
KeywordsMach Number Shock Speed High Mach Number Expansion Tube Primary Shock
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- 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
- 2.Hornung, H.G.: 28th Lanchester Memorial Lecture - Experimental real-gas hypersonics. Aeronautical Journal (December 1988)Google Scholar
- 3.Gordon, S., McBride, B.J.: Computer program for calculation of complex chemical equilibrium compositions and applications. Technical Report Reference Publication 1311, NASA (October 1994)Google Scholar
- 4.McGilvray, M.: The use of expansion tube facilities for scramjet testing. PhD Thesis, Centre for Hypersonics, Department of Mechanical Engineering, University of Queensland (2008)Google Scholar
- 5.Gildfind, D.E., Morgan, R.G., McGilvray, M., Jacobs, P.A., Stalker, R.J., Eichmann, T.N.: Free-Piston Driver Optimisation for Simulation of High Mach Number Scramjet Flow Conditions. In: 28th International Symposium on Shock Waves, July 17-22, University of Manchester, United Kingdom (accepted, 2011)Google Scholar
- 6.Morgan, R.G.: Free-Piston Driven Expansion Tubes. Handbook of Shock Waves 1, 603–622 (2001)Google Scholar
- 8.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
- 9.Jacobs, P.A., Gollan, R.J.: The Eilmer3 Code: User Guide and Example Book. Mechanical Engineering Report 2008/07, University of Queensland (2009)Google Scholar