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Instability of hypersonic flow over a cone

Published online by Cambridge University Press:  25 August 1997

SHARON O. SEDDOUGUI  and
ANDREW P. BASSOM
SHARON O. SEDDOUGUI
Affiliation:
Permanent address (for correspondence): School of Mathematics and Statistics, University of Birmingham, Birmingham, B15 2TT, UK. School of Mathematics, University of New South Wales, Sydney 2052, Australia
ANDREW P. BASSOM
Affiliation:
Department of Mathematics, University of Exeter, North Park Road, Exeter, Devon, EX4 4QE, UK
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Abstract

The linear stability analysis of hypersonic flow over a sharp slender cone with an attached shock is described. Attention is focused on the viscous modes of instability which may be described by a triple-deck structure. The situation in which both the effect of the shock and the influence of curvature are important is considered in the weak-interaction region. Both neutral and non-neutral solutions are presented for both axisymmetric and non-axisymmetric disturbances. The results obtained suggest that the effect of curvature on the stability of hypersonic flow is significant when the attached shock is taken into account.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 345 , 25 August 1997 , pp. 383 - 411
Copyright
© 1997 Cambridge University Press

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