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本文较深入地研究了由直-曲壁构成的二元收-扩管内收敛段底壁的附画层抽气板形状,在吸除系数为1条件下,吸除附面层对几何喉道附近壁画、对跨音结尾激波与扩压器壁附面层干扰区上游的附面层发展的影响;研究了结尾跨音激波与扩压器底壁附面层干扰区的附面层控制对其下游的流场畸变的影响;文中并对有、无附面层控制下的干扰区下游的动态畸变作了比较.指出,通过对干扰区的附面层抽吸,近壁面的紊流度峰值和平均值大大下降.
In this paper, the shape of suction plate attached to the bottom wall of the converging section of biconcave-diffuser tube consisting of straight-curved walls is studied in depth. When the suction coefficient is 1, Near the end of the tidal wave and diffuser wall interference layer upstream of the surface layer of the development of the impact; study of transonic shock and the diffuser bottom wall interference layer surface layer In the paper, the dynamic distortions in the downstream of the interference zone with and without the overburden are compared, and it is pointed out that by controlling the surface layer interference in the interference zone, Flow peaks and averages dropped significantly.