高空滑移条件对化学非平衡粘性流动的影响

Effects of High Altitude Slip Boundary Conditions on Chemical Non-equilibrium Viscous Shock-Layer Flows

本文用数值方法计算了不同高度滑移边界条件对钝体绕流流场特性的影响。采用化学非平衡粘性激波层控制方程,边界条件含壁面滑移、激波滑移和无滑移条件。计算结果表明,考虑滑移条件后,激波层较厚,激波处的电子数密度为一有限值。文中给出了计算结果,并与其它文献的结果作了比较。

The numerical method is used for calculating the effects of slip boundaryconditions on the viscous flows over blunt bodies at different altitude.Thenonequilibrium viscous shock-layer equations are used as the governingequations,the boundary conditions include shock-slip,wall-slip and no slipconditions.The numerical results show that the shock stand-off distance is thickeras slip boundary conditions are considered,and the value of electron numberdensity behind the bow shock is not zero.The numerical results are pesentedand compared with those from other methods.