Mechanism of shock unsteadiness in separated shock/boundary-layer interactions
نویسندگان
چکیده
منابع مشابه
Modeling the Effect of Shock Unsteadiness in Shock/ Turbulent Boundary-Layer Interactions
Reynolds-averaged Navier–Stokes (RANS) methods often cannot predict shock/turbulence interaction correctly. This may be because RANS models do not account for the unsteady motion of the shock wave that is inherent in these interactions. Previous work proposed a shock-unsteadiness correction that significantly improves prediction of turbulent kinetic energy amplification across a normal shock in...
متن کاملModeling the effect of shock unsteadiness in shock-wave/ turbulent boundary layer interactions
Reynolds averaged Navier-Stokes methods often cannot predict shock/turbulence interaction correctly. This may be because RANS models do not account for the unsteady motion of the shock wave that is inherent in these interactions. Sinha et al. [Phys. Fluids, Vol. 15, No. 8 (2003)] propose a shock-unsteadiness correction that significantly improves turbulence prediction across a normal shock in a...
متن کاملLow-frequency unsteadiness in shock wave–turbulent boundary layer interaction
Stephan Priebe and M. Pino Martín Journal of Fluid Mechanics / Volume 699 / May 2012, pp 1 49 DOI: 10.1017/jfm.2011.560, Published online: Link to this article: http://journals.cambridge.org/abstract_S002211201100560X How to cite this article: Stephan Priebe and M. Pino Martín (2012). Lowfrequency unsteadiness in shock wave–turbulent boundary layer interaction. Journal of Fluid Mechanics, 69...
متن کاملModeling shock unsteadiness in shock/turbulence interaction
The RANS (Reynolds averaged Navier-Stokes) equations can yield significant error when applied to practical flows involving shock waves. We use the interaction of homogeneous isotropic turbulence with a normal shock to suggest improvements in the k− model applied to shock/turbulence interaction. Mahesh et al. and Lee et al. present direct numerical simulation (DNS) and linear analysis of the flo...
متن کاملNumerical Simulation of Shock-Wave/Boundary/Layer Interactions in a Hypersonic Compression Corner Flow
Numerical results are presented for the shock-boundary layer interactions in a hypersonic flow over a sharp leading edge compression corner. In this study, a second- order Godunov type scheme based on solving a Generalized Riemann Problem (GRP) at each cell interface is used to solve thin shear layer approximation of laminar Navier-Stokes (N-S) equations. The calculated flow-field shows general...
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ژورنال
عنوان ژورنال: Physics of Fluids
سال: 2015
ISSN: 1070-6631,1089-7666
DOI: 10.1063/1.4937350