Interaction between Shock Waves and Boundary Layer in Non-Equilibrium Hypersonic Rarefield Flow. 1st Report. Comparison with Continuum Model and Larsen-Borgnakke Model.

Abstract

A DSMC (direct simulation Monte Carlo) simulation using Dynamic Molecular Collision (DMC) Model based on Molecular Dynamics (MD) calculation is applied for solving a two-dimensional non-equilibrium hypersonic rarefied flow over a flat plate with and without angle of leading edge. Numerical results show that non-equilibrium characteristics between translational and rotational temperature are obtained behind leading edge over the plate. The results of the DSMC agree well with those of the experiments, Howere, the results of the Navier-Stokes are quite different from those of the experiments. The comparison between Larsen-Borgnakke (LB) model and DMC model reveals that the DMC model obtains excellent results without a parameter such as an inelastic parameter.