On the evolutions of triple point structure in wedge-stabilized oblique detonations

The oblique detonation induced by a two-dimensional semi-infinite wedge is simulated numerically with the Navier–Stokes equations and detailed H 2 /air reaction model based on open-source program-Adaptive Mesh Refinement in Object-oriented C++. A spatially seventh-order-accurate weighted essentially non-oscillatory scheme adopted for convective flux discretization. formation evolution of wedges at different angles inflow conditions are investigated, prediction flow field proposed. results show that can be divided into two processes. first process similar to shock unreactive inflow. When passes through wedge, wave starts form tip, followed unstable curved surface triple point. In this process, thin layer formed front, but thickness almost constant. second deflagration detonation. As rate increases, front fixed thickens, gradually approaches wave. coupled wave, formed. Moreover, theoretical point location Compared numerical simulation results, position transition wave–oblique relatively acceptable.