Abstract
Shock/shock interaction flow has been simulated to calculate nonequilibrium heat flux distribution along a circular cylinder surface. The present method uses Park’s two-temperature model for the description of thermochemical nonequilibrium process in high speed, but low temperature air, and solves the Navier-Stokes equations for a reacting gas mixture, using the HLLE and LU-SGS methods as numerical scheme. Heat flux as well as pressure has been calculated by changing cell size at the surface, because the calculated heat transfer is sensitive to the cell size in a boundary layer. The results show good agreement with experimental data, which suggests that nonequilibrium effect should be taken into account in the estimation of heat flux even in high speed, but low temperature air flow.
