Influence of geometric parameters on the performance of ejector used in aeroengine air system

Jingyang Zhang,Jinxin Geng, Sen Yang,Fengna Cheng, Guiping Zhu, Cong Wang,Zhenxi Yang,Yuanwei Lyu

Thermal Science and Engineering Progress（2023）

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摘要

•The entrainment ratio and the total pressure loss have opposite variation trend.•When the compression ratio is 1, the overall amplification of the ejector is the most effective way to improve performance.•When the compression ratio is 1.17, the ejector has the best performance with the mixing chamber diameter is 7 mm.•Background shock wave and eddy current loss cause ejector performance decrease.

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关键词

Ejector performance,Geometric parameter,Entrainment ratio,Total pressure recovery coefficient,Eddy current loss,Flow field

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