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Transition from regular to Mach reflection of shock waves Part 2. The steady-flow criterion

Published online by Cambridge University Press:  20 April 2006

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.
M. L. Robinson
Affiliation:
Weapons Systems Research Laboratory, Defence Research Centre, Salisbury, South Australia

Abstract

It is shown experimentally that, in steady flow, transition to Mach reflection occurs at the von Neumann condition in the strong shock range (Mach numbers from 2.8 to 5). This criterion applies with both increasing and decreasing shock angle, so that the hysteresis effect predicted by Hornung, Oertel & Sandeman (1979) could not be observed. However, evidence of the effect is shown to be displayed in an unsteady experiment of Henderson & Lozzi (1979).

Type
Research Article
Copyright
© 1982 Cambridge University Press

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