This paper concerns the interaction of an impinging shock wave with a supersonic turbulent boundary layer over several distinct and permanently deformed surfaces, resulting in differences in the shock–boundary-layer interaction and the surface acoustic loading. High-order numerical simulations featuring two-dimensional surface deformations typically encountered in experiments are performed. The deformation amplitudes are up to half the incoming turbulent boundary-layer thickness. The results show that the high-pressure region about the shock impingement is significantly altered and can become narrower or wider depending on the local surface inclination of the deformed panel mode. The surface curvature is found to not significantly affect the separation and reattachment locations of the recirculation bubble. The power spectrum analysis of the pressure fluctuations along the panel’s midspan, where the surface attains the largest deformation amplitude, exhibits a rich and varied response. The pressure power spectrum is amplified in all of the surface deformation modes examined, with the magnitude of the amplification varying in the frequency domain, depending on the location and mode.

本文关注冲击波与超音速湍流边界层在几个不同且永久变形的表面上的相互作用，从而导致冲击波与边界层相互作用和表面声载荷的差异。进行了以实验中通常遇到的二维表面变形为特征的高阶数值模拟。变形幅度高达传入湍流边界层厚度的一半。结果表明，冲击冲击周围的高压区域发生了显着变化，并且根据变形面板模式的局部表面倾斜度可以变得更窄或更宽。发现表面曲率不会显着影响再循环气泡的分离和重新附着位置。沿面板中跨（表面变形幅度最大）的压力波动的功率谱分析表现出丰富多样的响应。压力功率谱在所有检查的表面变形模式中都会被放大，放大的幅度在频域中变化，具体取决于位置和模式。