1. The gust-cascade interaction noise was numerically simulated using computational aeroacoustics by solving the two-dimensional linearized Euler equations.
   采用计算气动声学方法求解二维线化欧拉方程对阵风与叶栅的干涉噪声进行了数值模拟。
2. Three-dimensional(3D)unsteady compressible flow over an open cavity and the relevant aeroacoustics are studied using a hybrid LES-acoustic analogy method.
   使用大涡模拟-声学比拟相结合的方法,研究三维开式空腔的非定常可压缩过流及其相关的气动声学问题。

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