Abstract
A blunt body in hypersonic flow is subjected to severe aerodynamic heating and drag. This is one of the most critical problems of designing the hypersonic vehicles such as Reusable Launch Vehicles(RLV). It is well known that the spiked-nose(aerospike)concept is effective to reduce aerodynamic drag on asymmetric blunt bodies in hypersonic flow. In this study, we investigated the heat flux distribution on a blunt-nosed body with an aerospike in hypersonic flow. The flow field around a blunt-nosed body is calculated by the full Navier-Stokes simulations to compare with the experimental data such as Schlieren photographs and TSP(Temperature Sensitive Paint)images. It was found that the heat flux distributions changes widely with the angle of attack. Moreover, the correlation between heat flux and the flow and the flow field exists due to the shock/shock interaction patterns for various angle-of-attacks.
