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Computations of Supersonic Flow with Ristorcelli′s Compressible Turbulence Model  

Park C. H (한국과학기술원 항공우주공학과)
Park S. O (한국과학기술원 항공우주공학과)
Publication Information
Journal of computational fluids engineering / v.8, no.3, 2003 , pp. 1-6 More about this Journal
Abstract
Three-dimensional endwall flow within a linear cascade passage of high performance turbine blade is simulated with a 3-D Wavier-Stokes CFD code (MOSA3D), which is based on body-fitted coordinate system, pressure-correction and finite volume method. the endwall flow characteristics, including the development and generation of horseshoe vortex, passage vortex, etc. are clearly simulated, consistent with the generally known tendency The effects of both turbulence model and convective differencing scheme on the Prediction performance of endwall flow are systematically analyzed in the present paper. The convective scheme is found to have stronger effect than the turbulence modei on the prediction performance of endwall flow. The present simulation result also indicates that the suction leg of the horseshoe vortex continues on the suction side until it reaches the trailing edge.
Keywords
Enthalpy method; Turbine cascade; Secondary Flow; Horseshoe Vortex; Passage Vo티ex;
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