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Numerical simulation of compressible turbulent flow via improved gas‐kinetic BGK scheme
Author(s) -
Xiong Shengwei,
Zhong Chengwen,
Zhuo Congshan,
Li Kai,
Chen Xiaopeng,
Cao Jun
Publication year - 2010
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.2449
Subject(s) - turbulence , transonic , turbulence kinetic energy , mechanics , discretization , compressibility , compressible flow , airfoil , flow (mathematics) , physics , k epsilon turbulence model , k omega turbulence model , computational fluid dynamics , mathematics , classical mechanics , mathematical analysis , aerodynamics
Abstract In order to solve compressible turbulent flow problems, this study focuses on incorporating the Spalart–Allmaras turbulence model into gas‐kinetic BGK (Bhatnagar–Gross–Krook) scheme. The Spalart–Allmaras turbulence model is solved using finite difference discretization. The variables on the cell interface are interpolated via the van Leer limiter in the reconstruction stage. Simulation of subsonic and transonic flow over a NACA0012 airfoil has been implemented using two‐dimensional body‐fitted grids. The numerical results obtained appear in good agreement with the AGARD results, demonstrating the effectiveness and usefulness of the strategy of coupling the Spalart–Allmaras turbulence model with the BGK scheme for compressible turbulent flow simulation. Copyright © 2010 John Wiley & Sons, Ltd.