NUMERICAL SIMULATION OF MHD FLOWS WITH NON-EQUILIBRIUM CHEMICAL REACTIONS ON UNSTRUCTURED MESHES

作者：Wang Jiangfeng^*; Wu Yizhao; Cheng Keming

来源：Modern Physics Letters B, 2009, 23(3): 297-300.

DOI：10.1142/s0217984909018242

• Magnetohydrodynamics
• hypersonic
• AUSM scheme
• unstructured mesh

Two dimensional hypersonic magnetohydrodynamics(MHD) flows with the chemical non-equilibrium effects are numerically simulated using upwind splitting scheme based on unstructured meshes. The governing equations are 2D MHD equations with the chemical components, where 5 species and 17 chemical reactions are considered. The AUSM scheme is implemented in the spatial discretization for the MHD equations, and an explicit 5-stage Runge-Kutta scheme is used for time integration. A loosely coupled approach is used to communicate between the MHD equations and the chemical reaction model. The computational model is a 2D blunt body, around which a dipole magnetic field is located. With hypersonic incoming flows, four different cases are numerically simulated to analyze the effects caused by the magnetic field and/or non-equilibrium chemical reactions. Numerical results are obtained and compared well with available data.

• 出版日期2009-1-30
• 单位南京航空航天大学