关键词: 钝舵, 激波／湍流边界层干扰, 分离, 高分辨率格式

Abstract:

The Reynolds averaged Navier Stokes equations are solved numerically by Beam Warming/TVD scheme, Roe second order, Roe third order and Roe fourth order flux difference splitting schemes Baldwin Lomax model is adopted for turbulence flow Thus a numerical study with different high resolution schemes for supersonic flow over a blunt fin mounted on a flat plate is made The computed results display flow structure in detail The pressure distributions on the surface show good agreement with the experimental data Especially, the Roe third order scheme gives the best results among those schemes The existence of two reversed flow supersonic zones is observed in the results

Key words: blunt fin, shock wave/turbulent boundary layer interaction, separation, high resolution schemes