Thermochemical non-equilibrium and electromagnetic effects of double-cone in hypervelocity flow

Abstract

Hypervelocity flows generated over a 25°/55° double-cone are numerically investigated, characterized by a complex shock wave/boundary layer interaction. Based on the low magnetic Reynolds number assumption, the coupled model is established for the thermochemical non-equilibrium flow field and the externally applied magnetic field. The aim of the study is on one hand to evaluate the high temperature effects and on the other to investigate the electromagnetic effects of such an interaction. The results indicate that the thermochemical non-equilibrium effects become relevant and significantly affect the flow structure and surface properties in the case of high-enthalpy flows. The performance of shock wave/boundary layer interaction flows magnetohydrodynamic control is mainly determined by the Lorentz force near the triple point and the separated flow region. Furthermore, the modification of the flow field due to the applied magnetic field causes the mitigation of the aerodynamic heating. This is enhanced with the increase of magnetic field strength.