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Third Symposium on Turbulence and Shear Flow Phenomena
June, 25-27, 2003, International Center, Sendai, Japan

DOI: 10.1615/TSFP3

NUMERICAL STUDY OF SEPARATED FLOW IN A PLANE ASYMMETRIC DIFFUSER

pages 251-256
DOI: 10.1615/TSFP3.430
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摘要

Computations of the turbulent flow through plane asymmetric diffusers (PAD) for opening angles from 8° to 10° have been carried out. The fractional step finite element formulation of Guermond and Quartapelle (1997) for the Reynolds Averaged Navier-Stokes (RANS) equations has been combined with the non-linear Explicit Algebraic Reynolds Stress Model (EARSM) of Wallin and Johansson (2000) and the Wilcox (1993) low Re K-ω formulation. The standard EARSM has been complemented with strain rate based streamline curvature correction (Wallin and Johansson, 2002). The computations are compared to experiments of Tornblom et al. (2002) for 8.5° and Buice and Eaton (2000) for the 10° PAD.

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