Affiliation of Author(s):能源与动力学院

Journal:Tuijin Jishu

Abstract:The design of radial total pressure distribution simulator is a key technology of compressor component performance test and aerodynamic stability test. In order to simulate the radial total pressure distribution generated by the upstream components, a radial total pressure distribution simulator composed of annular metal wire was designed. Diameter and spacing of the metal wire were non-uniformly distributed along the radial direction. The design of the simulator made use of the principle that the airflow flows through different diameters of wire to produce different sizes of flow loss to generate the radial total pressure distribution. Through iteration of flow field numerical simulation to adjust the diameter and position of the metal wire, the final dimensionless total pressure distribution at the target position meets the target design requirements. The model blowing test shows that the experimental results and CFD calculation results reflect the same trend. With the increase of flow Mach number, the total pressure loss of distortion generator downstream increases gradually, but the numerical simulation in the lower part of the channel underestimated the wake mixing ability, resulting in significant fluctuations in total pressure. The size of the separation zone was overestimated in the upper part of the channel, resulting in a greater total pressure loss than the experimental value. The maximum relative deviation is about 2.77%. © 2019, Editorial Department of Journal of Propulsion Technology. All right reserved.

ISSN No.:1001-4055

Translation or Not:no

Date of Publication:2019-03-01

Co-author:Dai, Xiao-Qiang,Chen, Luo,Zhou, Kai

Correspondence Author:王志强