关键词: 紊流度;流场畸变;模拟试验;发动机进气道

Abstract: The paper describes the main geometric parameter effects on the turbulence for the axisymmetric type of turbulence generator. The experiments show that the higher turbulence is reached in M2 = 0.4-0.6 when the smaller divergence angle, smaller convergence ratio, smaller relative length and suitable area ratio are adopted. For example when M2 = 0.5 the turbulence equals 0.076 and the total pressure recovery efficiency 0.74.

Key words: Turbulence;Flow distortion;Simulation test;Intake of engine