Numerical Solution of Compressible Turbulent Flows Using Earsm Model
نویسندگان
چکیده
This article deals with the numerical solution of compressible turbulent flows in aerodynamics. Compressible turbulent flow is described by the system of Favre averaged Navier-Stokes equations, which are closed by the explicit algebraic Reynolds stress model (EARSM) of Wallin and Johansson. The averaged Navier-Stokes equations together with EARSM model of turbulence are discretized by the finite volume method based on HLLC Riemann solver with piecewise linear WENO reconstruction and explicit two-stage TVD Runge-Kutta method. Source terms in transport equations of turbulence model are treated by point implicit method for better stability of explicit scheme. The numerical method is validated by comparison to theoretical results for the subsonic flow around the flat plate and experimental results for the transonic flow around the RAE 2822 airfoil.
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