NUMERICAL MODELING OF NEAR-WALL SUPERSONIC MIXING USING IDDES APPROACH

Current research is devoted to the development of mathematical model and computational algorithms of supersonic mixing based on hybrid IDDES (improved delayed detached eddy simulation) turbulence approach and Spalart Allmaras turbulence model. Di¨usion and heat conduction processes are also taken into account. Time integration is carried out with explicit-implicit method, giving the second-order predictor-corrector scheme in the explicit region. Parallel realization of GMRES-LU-SGS (generalized minimum residual lower-upper symmetric Gauss Seidel) method is developed for solving the system of governing equations [1].