On high speed turbulence modeling of shock-wave boundary-layer interaction
Abstract
In the present paper some of the recent theoretical developments in compressible turbulence modeling are analyzed, and a model that accounts for compressibility as well as low Reynolds number effects is developed. The leading compressibility terms have been identified in the dilatation-dissipation, pressure-dilatation and the scalar product of the Favre velocity and mean pressure gradient. For the dilatation-dissipation a model similar to that of Zeman has been assumed; the pressure-dilatation is modeled according to Sarkar's model; and the 'Favre' contributions has been modeled with a gradient law. The model also accounts for compressibility effects on the von Karman's constant and on the turbulence length scale, which affects the heating rates. A study of hypersonic boundary layer flows and shock-wave boundary-layer interactions shows that the effects of compressibility depend on the flow complexity.
- Publication:
-
31st AIAA Aerospace Sciences Meeting and Exhibit
- Pub Date:
- January 1993
- Bibcode:
- 1993aiaa.meetQV...G
- Keywords:
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- Boundary Layer Flow;
- Hypersonic Boundary Layer;
- Low Reynolds Number;
- Shock Wave Interaction;
- Turbulence Models;
- Turbulent Boundary Layer;
- Aerodynamic Configurations;
- Compressible Flow;
- Flow Distribution;
- Hypersonic Flow;
- Fluid Mechanics and Heat Transfer