In this paper,the flow fields inside isolator has been simulated using three order up-wind MUSCL sche-me,and K-turbulence model,so it is easy to catch the shock train in the isolator flow field.

• 隔离段是双模态超燃冲压发动机实现双模态和模态转换的一个重要部件,同时,它把进气道和燃烧室隔离开,以防止燃烧室高压干扰进气道,引起进气道不启动。