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Precursor shock waves at a slow—fast gas interface

Published online by Cambridge University Press:  11 April 2006

A. M. Abd–El–Fattah ,
L. F. Henderson  and
A. Lozzi
A. M. Abd–El–Fattah
Affiliation:
Department of Mechanical Engineering, University of Sydney, New South Wales 2006, Australia
L. F. Henderson
Affiliation:
Department of Mechanical Engineering, University of Sydney, New South Wales 2006, Australia
A. Lozzi
Affiliation:
Department of Mechanical Engineering, University of Sydney, New South Wales 2006, Australia
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Abstract

This paper presents experimental data obtained for the refraction of a plane shock wave at a carbon dioxide–helium interface. The gases were separated initially by a delicate polymer membrane. Both regular and irregular wave systems were studied, and a feature of the latter system was the appearance of bound and free precursor shocks. Agreement between theory and experiment is good for regular systems, but for irregular ones it is sometimes necessary to take into account the effect of the membrane inertia to obtain good agreement. The basis for the analysis of irregular systems is one-dimensional piston theory and Snell's law.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 76 , Issue 1 , 14 July 1976 , pp. 157 - 176
Copyright
© 1976 Cambridge University Press

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