An analytical approach for stand-off distance of detached shock waves

Author:  S. Askari

Abstract:
An analytical model for prediction of shock stand-off distance in front of blunt bodies was derived based on dimensional analysis. Despite of existing models, it is not limited to a specific geometry or a special range of Mach number. Five blunt body configurations were studied to verify accuracy of this mathematical model. A CFD code was established and validated by existing experimental data and shock stand-off distance (SSOD) in front of these configurations was obtained by this CFD code and used for validation of the analytical model that confirmed its accuracy. SSOD was computed by inviscid flow and various turbulence models in order to investigate effects of viscosity and turbulence modeling on it.

Keywords:
Shock stand-off distance (SSOD)
Mach number
Blunt body
Turbulence model
CFD

Published in: Aerospace Science and Technology  (Volumes 28, Issue 1, July 2013)

Publisher: Elsevier

ISSN Information: 1270-9638

An analytical approach for stand-off distance of detached shock waves

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