中文摘要：

采用五阶WENO格式，通过数值求解二维非定常Navier-Stokes方程，系统模拟了激波与旋涡对的干扰过程。我们研究了强度为1．05和1．2两个典型的激波同不同强度的旋涡对的干扰过程。根据激波动力学特性，我们把激波与掠过型旋涡对干扰分成四类，而碰撞型干扰分成七种不同的类型。研究表明，激波与旋涡对干扰过程中，声波产生有三种机制，激波与涡对的干扰，涡对之间的耦合以及激波与声波的干扰。

英文摘要：

The interaction between a shock wave and a pair of vortices is simulated through solving the two dimensional, unsteady compressible Navier-Stokes equations with a fifth order WENO scheme. The purpose of this study is to characterize the shock structure and the mechanism of sound generation. We consider two types of interaction, passing type and colliding type. According to the different pattern of shock structure, the passing type interaction is classified into four types and the colliding type interaction is classified to seven types of interaction. Our simulation found that the sound field is the result of three mechanism, the interaction itself, the vortex coupling and the shock sound interaction.