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Transition from regular to Mach reflection of shock waves Part 1. The effect of viscosity in the pseudosteady case

Published online by Cambridge University Press:  20 April 2006

H. G. Hornung  and
J. R. Taylor
H. G. Hornung
Affiliation:
Department of Physics, Faculty of Science, Australian National University. P.O. Box 4. Canberra, ACT 2600 Present address: DFVLR-AVA, 34 Göttingen, Bunsenstr. 10, W. Germany.
J. R. Taylor
Affiliation:
Department of Physics, Faculty of Science, Australian National University. P.O. Box 4. Canberra, ACT 2600
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Abstract

It is demonstrated experimentally that the influence of viscosity on the transition condition in pseudosteady flow is very significant. A mechanism is proposed for this effect, which explains the features of the observed behaviour. In particular, an experimental method of finding the inviscid transition condition, by extrapolation to infinite Reynolds number, gives excellent agreement with the calcwlatcd inviscid sonic criterion. It is thought that this provides the explanation for the usual persistence of regular reflection beyond the sonic: condition.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 123 , October 1982 , pp. 143 - 153
Copyright
© 1982 Cambridge University Press

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