Supersonic jet flow structure was analyzed at different work condition. Based on FW-H equation and LES model, under expanded supersonic jet noise was simulated.

• 分析了不同工作状态下的超声速喷流结构，采用LES模拟了欠膨胀状态的超声速喷流流场的激波结构，对该状态进行了非定常计算，结合FW-H方程模拟了喷口处气动声辐射频谱图。