关键词: 进气道－发动机匹配;流场畸变;流场模拟

Abstract: he screen resistance coefficient is studied for varied screens. The experiments show that there is a definite function relationship between the screen resistance coefficient and Reynolds number for a certain screen porosity or solidity ratio. The distortion simulation screen is designed based on the experimental resistance coefficient of screens by one dimensional flow theory. The experiments also show that the flow field pattern produced by the distortion simulation screen simulates the defined one and the simulation tolerance of the distortion elements is within the accurates required basically. An interactive computer program is used in the design and tests of the distortion simulation screens.

Key words: Inlet-Engine matching;Flow distortion;Flow field simulation