【摘要】 采用极为有效的抛物化稳定性方程 (PSE)方法研究边界层的非平行稳定性。并利用抛物线坐标变换、有限远延拓外边界条件、及流向和法向全差分的数值方法 ,对不同频率的二维Tollmien Schlichting波的非平行稳定性进行了计算和分析。计算结果与Orr Sommerfeld方程(OSE)的解以及谱配置方法的PSE结果作了详细的比较 ,得到了满意的结果更多还原

【Abstract】 In this article the nonparallel stability of the boundary layer is investigated effectively by using the parabolized stability equations (PSE). With the coordinate transformation, the finitely expanded out boundary condition,and the finite difference technique in both x coordinate and y coordinate, the evolution of Tollmien Schlichting waves are presented which are comparable with the Orr Sommerfeld equations (OSE) results and PSE results by spectral method.更多还原