Suscripción a Biblioteca: Guest
Second Symposium on Turbulence and Shear Flow Phenomena
June, 27-29, 2001, KTH, Stockholm, Sweden

DOI: 10.1615/TSFP2

A HYBRID LES-RANS MODEL BASED ON A ONE-EQUATION SGS MODEL AND A TWO-EQUATION K−ω MODEL

pages 175-180
DOI: 10.1615/TSFP2.1030
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SINOPSIS

A hybrid LES-RANS model is proposed. RANS is used in the near wall regions (y+ ≤ 60), and the turbulence is modelled with a K−ω model. LES is used in the remaining part of the flow, and the SGS turbulence is modelled with a one-equation ksgs model. The same continuity and momentum equations are solved throughout the domain, the only difference being that the turbulent viscosity is taken from the K−ω model in the RANS region, and from the one-equation ksgs model in the LES region. The model is applied to two test cases, both incompressible: fully developed flow in a plane channel and the flow over a 2D-hill in a channel.

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