Introduction
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) [1]. 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 [2].
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Gildfind, D.E., Morgan, R.G., McGilvray, M., Jacobs, P.A. (2012). High Mach Number and Total Pressure Flow Conditions for Scramjet Testing. In: Kontis, K. (eds) 28th International Symposium on Shock Waves. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-25685-1_42
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