Hypersonic 3-D Blunt Body Equilibrium Air Flow Using High Order WENO Schemes II

We present simulations of Mach 12, 3D, hypersonic turbulent flows of air around blunt bodies with applied magnetic fields of various strengths. We use the Baldwin-Lomax turbulence model. The air is heated by a shock that can change its thermodynamic properties. We treat the air as a real gas in thermodynamic equilibrium. Due to the high temperature the thermodynamic properties of the air are affected changes in specific heats due to rotational and vibrational excitation, by molecular dissociation, ionization, and other effects. We calculate the thermodynamic properties of the air using the curve fitting method implemented in the TGAS FORTRAN subroutines. The hot air is partially ionized, but the electrical conductivity of the air is low enough that we can use a low magnetic Reynolds number MHD model. We use a temperature dependent electrical conductivity with an onset temperature of 4,000 K. Our numerical method is based on the Low Diffusion E-CUSP (LDE) scheme developed by Zha8 et al with a 5th order WENO scheme.