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The development of weak waves in the unsteady one-dimensional flow of a vibrationally relaxing gas ahead of an impulsively started piston

Published online by Cambridge University Press:  29 March 2006

C. G. Dain  and
J. P. Hodgson
C. G. Dain
Affiliation:
Department of the Mechanics of Fluids, University of Manchester, England Present address: Logica Limited, 31-36 Foley Street, London W1P 7LB.
J. P. Hodgson
Affiliation:
Department of the Mechanics of Fluids, University of Manchester, England
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Abstract

The method of characteristics is used to calculate the flow ahead of an impulsively started piston moving at constant velocity. Particular attention is paid to the development of weak shock waves which are either fully or partly dispersed at very large distances from the piston. It is found that the global features of the flows may be represented in similarity form, and the graphs obtained allow extrapolation to very weak waves.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 69 , Issue 1 , 13 May 1975 , pp. 129 - 144
Copyright
© 1975 Cambridge University Press

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