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为了探索一种抑制激波-边界层相互作用的新型无源、被动控制方法,采用有限体积法计算流体力学程序,分别对压缩拐角和激波入射平板两种典型流动的附面层分离进行了无源被动控制的数值研究。数值结果表明,新型无源被动控制方法消除了20°压缩拐角流动所产生的分离泡;对激波入射平板所诱导的附面层分离,采用的自适应无源控制方法可将分离区长度减小为无控制时的58%、总压恢复可比无控制时提高7.2%、x=0.85m截面最大回流速度较无控制时减小了69.3%。从而验证了无源被动抑制控制激波-边界层相互作用的可行性。
In order to explore a new passive and passive control method to suppress the shock-boundary layer interaction, the finite volume method was used to calculate the fluid mechanics program, and the separation of the two typical flows of the compression corner and shock plate Numerical Study of Passive Passive Control. The numerical results show that the new passive passive control method can eliminate the separation bubble caused by the 20 ° compressed corner flow. The adaptive passive control method induced by the incident slab can reduce the separation zone length 58% of the cases with no control, the total pressure recovery can be increased by 7.2% compared with no control, and the maximum reflux velocity of the section with x = 0.85m is reduced by 69.3% compared with the control without control. Which verifies the feasibility of passive passive suppression control shock-boundary layer interaction.