SHOCK INTERACTIONS IN NONEQUILIBRIUM HYPERSONIC FLOW

摘要

A shock interaction problem is solved with finite difference methods for a hy- personic flow of air with chemical reactions. If a body has two concave corners, a secondary shock is formed in the shock layer and it meets the main shock later. As the two shocks meet, the flow becomes singular at the interaction point, and a new main shock, a contact discontinuity and an expansion wave appear as a result of interaction between the two shocks.