喉道参数对埋入式进气道气动性能的影响

Influence of Throat Parameters on Performance of Submerged Inlet

以实验的方法系统地研究了喉道设计参数对埋入式进气道气动性能的影响。得出了低速下模型处于 0°攻角 ,0°侧滑及 4°侧滑时喉道位置和喉道面积比对进气道气动性能的影响。实验研究结果表明 :在适当的位置设置面积比合适的喉道可以大幅度地提高埋入式进气道的效率 ,降低进气道出口流场畸变。本文的研究为埋入式进气道喉道参数的优化设计提供了实验依据。

In order to optimize the design of submerged inlet, a series of experiments are made to find out the influence of the throat parameters on the performance of the submerged inlet. Some regularities about the relationship between the throat areas, the throat position and the efficiency, the distortion of the inlet are obtained. Experimental results show that with optimum throats′ parameters the efficiency of the inlet can be greatly raised and the distortion of the flow field can be evidently decreased.