Three-dimensional thermochemical nonequilibrium viscous flow over blunt bodies with catalytic surface

The hypersonic thermochemical nonequilibrium airflow over the catalytic sur face of a blunt body moving at attack and slip angles along a prescribed ae rodynamic reentry trajectory is considered. The thin viscous shock layer th eory and the preferential vibration-dissociation-exchange reactions couplin g model, which takes into account the interaction between the vibrational r elaxation and the chemical processes, are used as an initial gasdynamics mo del. The efficient computational algorithm on based high-accuracy implicit finite difference scheme is used. The algorithm does not imply the existenc e of a symmetry plane in the flow and does not need a preliminary solution to the Stefan-Maxwell relations with respect to the diffusion fluxes. The i nfluence of the body shape, of the attack and slip angles, of the heterogen eous chemical reaction model, of the freestream parameters, and of the vibr ational nonequilibrium on the heat flux: and on the equilibrium surface tem perature is investigated.