- Central Expansion Wave in Nonequilibrium Flow
- Park, Tae-Hoon ;
- Kyungpook mathematical journal, volume 35, issue 3, 1996, Pages 783~783
Abstract
If an object in hypersonic flow of air has two concave corners, a secondary shock is formed in the nonequilibrium 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 a central expansion wave appear as a result of interaction between the two shocks. We solved a Riemann problem that describes the flow of air when two shocks meet in nonequilibrium hypersonic flow of air. By solving the Riemann problem, we determined the singular flow parameters at the interaction point accurately including an accurate solution of the central expansion wave flow.