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 language | English |
---|---|
Pages (from-to) | 1833-1847 |
Number of pages | 15 |
Journal | International Journal for Numerical Methods in Fluids |
Volume | 67 |
Issue number | 12 |
DOIs | |
State | Published - 30 Dec 2011 |
Keywords
- Compressible turbulent flow
- Gas-kinetic BGK scheme
- NACA0012 airfoil
- Spalart-Allmaras model