ISSN Online: 2377-424X
ISBN Print: 1-56032-797-9
International Heat Transfer Conference 11
AERODYNAMIC HEATING PREDICTION OF REACTING BLUNT BODY FLOW WITH AN IMPINGING SHOCK WAVE
Abstract
Numerical solutions of shock-on-shock interactions are presented for hypersonic thermochemical nonequilibrium air flows around a blunt body. The Navier-Stokes equation solver for a chemically reacting and vibrationally relaxing gas mixture was applied to the present problem, where the concepts of the Advection Upstream Splitting Method (AUSM) and the Lower-Upper Symmetric Gauss-Seidel (LU-SGS) method were basically employed along with the two-temperature thermochemical model of Park. The aerodynamic heating rates with or without the shock-on-shock interaction to a sphere and circular cylinders are calculated for a hypersonic nonequilibrium flow. The numerical results show that typical type-lV shock-on-shock interaction pattern with a supersonic jet structure is also formed in thermochemical nonequilibrium flows, and that the contribution of convective heat flux in the translational/rotational mode to the total heat flux is dominant.