关键词: 进气道;亚音速扩压器;最佳设计;性能;计算

Abstract: In this paper, an idea of optimum design concerning a subsonic inlet duct is proposed on the experimental investigations of subsonic diffusers in past years. A-nd the function of the program about the design and calculation of performa.nce of the subsonic inlet duct is described. The experimental results obtained in. practice show that the prpgram can be used in the earlier stage of the design of the inlet to replace or reduce the experiments for model selecting, so the experimental expenses and time for design can be greatly reduced.

Key words: Inlet;Subsonic diffuser;Optimum design;Performance;Calculation