Experiment study on forward propagation characteristics on the shock train in an annular isolator under steady back pressure

Fei Wu; Xiaoqiang Fan; Bing Xiong; Junbing Liu; Jian Zhao

doi:10.1117/12.3006407

26 September 2023 Experiment study on forward propagation characteristics on the shock train in an annular isolator under steady back pressure

Fei Wu, Xiaoqiang Fan, Bing Xiong, Junbing Liu, Jian Zhao

Author Affiliations +

Proceedings Volume 12793, International Conference on Mechatronics and Intelligent Control (ICMIC 2023); 127930F (2023) https://doi.org/10.1117/12.3006407
Event: International Conference on Mechatronics and Intelligent Control (ICMIC2023), 2023, Wuhan, China

Abstract

Since the current conventional straight isolator cannot meet the needs of various new engines, the annular isolator has become a hot research object. At present, there are few studies on the flow field in the annular isolator, and most of the research contents are aimed at the shock train leading edge in the annular isolator, and there are relatively few studies on the motion of the shock train in the annular isolator. Therefore, this paper conducts experiments on the annular isolator under the steady-state back pressure to explore the motion characteristics of the shock train in the annular isolator. An experimental device of the annular isolator under static wind tunnel is designed, and the wall pressure datas of the annular isolator under different steady-state back pressures are collected. The experimental results show that the oscillation of the shock train leading edge in the annular isolator is a low frequency oscillation, and the shock train has a hysteresis effect during the movement.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Fei Wu, Xiaoqiang Fan, Bing Xiong, Junbing Liu, and Jian Zhao "Experiment study on forward propagation characteristics on the shock train in an annular isolator under steady back pressure", Proc. SPIE 12793, International Conference on Mechatronics and Intelligent Control (ICMIC 2023), 127930F (26 September 2023); https://doi.org/10.1117/12.3006407

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