【摘要】 对来流马赫数Ma∞ =4 5的平板边界层中 ,幅值A分别为来流速度的 0 0 1,0 0 0 1,0 0 0 0 1倍的扰动波传播的物理过程进行了直接数值模拟·　计算采用 NND格式·　模拟中发现即使扰动幅值尚小时 ,流场中即已出现小激波·更多还原

【Abstract】 The propagation of the disturbance waves in a boundary layer at Mach number=4 5 is studied by direct numerical simulation (DNS), using NND scheme, and different amplitudes A=0 01,0 001,0 000 1 of the disturbance have been assumed. The numerical result shows that there might be shocklets induced in the boundary layer, even when the amplitude of disturbance wave is still small.更多还原