Numerical simulation of compressible turbulent flow via improved gas-kinetic BGK scheme

Shengwei Xiong, Chengwen Zhong, Congshan Zhuo, Kai Li, Xiaopeng Chen, Jun Cao

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

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.

Original languageEnglish
Pages (from-to)1833-1847
Number of pages15
JournalInternational Journal for Numerical Methods in Fluids
Volume67
Issue number12
DOIs
StatePublished - 30 Dec 2011

Keywords

  • Compressible turbulent flow
  • Gas-kinetic BGK scheme
  • NACA0012 airfoil
  • Spalart-Allmaras model

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