Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-20T05:01:31.823Z Has data issue: false hasContentIssue false
  • English
  • Français

Numerical study of inviscid shock interactions on double-wedge geometries

Published online by Cambridge University Press:  10 December 1997

JOSEPH OLEJNICZAK ,
MICHAEL J. WRIGHT  and
GRAHAM V. CANDLER
JOSEPH OLEJNICZAK
Affiliation:
Department of Aerospace Engineering and Mechanics, Army High Performance Computing Research Center, University of Minnesota, 110 Union Street SE, Minneapolis, MN 55455, USA; e-mail: [email protected]
MICHAEL J. WRIGHT
Affiliation:
Department of Aerospace Engineering and Mechanics, Army High Performance Computing Research Center, University of Minnesota, 110 Union Street SE, Minneapolis, MN 55455, USA; e-mail: [email protected]
GRAHAM V. CANDLER
Affiliation:
Department of Aerospace Engineering and Mechanics, Army High Performance Computing Research Center, University of Minnesota, 110 Union Street SE, Minneapolis, MN 55455, USA; e-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Computational fluid dynamics has been used to study inviscid shock interactions on double-wedge geometries with the purpose of understanding the fundamental gas dynamics of these interactions. The parameter space of the interactions has been explored and the different types of interactions that occur have been identified. Although the interactions are produced by a different geometry, all but one of them may be identified as an Edney Type I, IV, V, or VI interaction. The previously unidentified interaction occurs because of the geometrical constraints imposed by the double wedge. The physical mechanisms for transition have been studied, and the transition criteria have been identified. An important result is that there are two different regimes of the parameter space in which the state of the flow downstream of the interaction point is fundamentally different. At high Mach numbers this flow is characterized by an underexpanded jet which impinges on the wedge and produces large-amplitude surface pressure variations. At low Mach numbers, the jet becomes a shear layer which no longer impinges on the wedge surface.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 352 , 10 December 1997 , pp. 1 - 25
Copyright
© 1997 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)