论文部分内容阅读
运动激波在波前同向气流中传播时与壁面附近边界层发生的相互作用,既不同于定常的激波边界层干扰,也与普通激波管中端壁反射激波与边界层的作用有很大差异。通过实验和数值模拟对这一问题进行研究表明,激波与边界层作用后,波面在壁面附近发生了明显弯曲,且触及壁面;弯曲的激波与壁面进一步作用后发生反射,由于波前气流速度不同,这种反射存在规则反射和马赫反射两种类型;由于激波反射,波后壁面附近形成了一个高压区;激波与边界层作用后,波后边界层内出现了一系列高低压区相间的流场结构。
The interaction between the shock wave and the boundary layer in the wave front propagating in the same direction is not only different from the normal shock wave boundary layer but also from the effect of the end shock wave and the boundary layer in the common shock tube There are big differences. The experimental results and numerical simulations show that when the shock wave and the boundary layer are applied, the wave surface is obviously bent near the wall surface and touches the wall surface. After the curved shock wave and the wall surface further react, the wave front wave There are two types of reflection, such as regular reflection and Mach reflection. Due to the reflection of shock wave, a high-pressure area is formed near the wave-front wall. After the shock wave and the boundary layer act, a series of high and low pressure Interzone flow field structure.