Study on the Flow Field Characteristics of Adaptive Aerodynamically Balance Ejector Nozzles with a Wide Working Range

Shengze Wu, Jingwei Shi, Li Zhou, Zhanxue Wang

科研成果: 书/报告/会议事项章节章节同行评审

摘要

In order to study the influence of different geometric parameters in a wide working range on the internal and external flow characteristics and thrust performance of the adaptive aerodynamic balance ejector nozzle, this paper focuses on the numerical simulation studies of ejector nozzles with different nozzle radius ratios, different spacing ratios and different expansion section length ratios under different working conditions. Results show that the thrust coefficient of large throat radius ratio ejector nozzle and small throat spacing ratio ejector nozzle in the subsonic state is better, while the thrust coefficient is relatively worse in the supersonic state. The thrust drag reduction performance of the nozzle is poor in the transonic state, and increasing the throat radius ratio and decreasing the throat spacing ratio can improve the thrust drag reduction performance of the nozzle in the transonic state. Increasing the length of the expansion section can improve the thrust performance of the nozzle under all working conditions to a certain extent.

源语言英语
主期刊名Springer Aerospace Technology
出版商Springer Science and Business Media Deutschland GmbH
241-251
页数11
DOI
出版状态已出版 - 2025

出版系列

姓名Springer Aerospace Technology
Part F194
ISSN(印刷版)1869-1730
ISSN(电子版)1869-1749

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