哈尔滨工程大学学报2025，Vol.46Issue(7)：1333-1339,7.DOI:10.11990/jheu.202308012
氦氙混合工质离心压气机气动设计与性能研究
Aerodynamic design and performance study of a centrifugal compressor based on helium-xenon working fluid
摘要
Abstract
The helium-xenon working fluid used in the closed Brayton cycle has significant differences in physical properties compared with traditional air-working fluids,which in turn affects the aerodynamic performance of the key component centrifugal compressor in the cycle.In response to this issue,this study first studied the physical properties of helium-xenon,established a numerical model of a centrifugal compressor on the basis of these proper-ties,and analyzed its aerodynamic performance based on numerical simulation methods.The results indicated that helium-xenon with a molecular weight of 40 g/mol was most suitable as a circulating working fluid.The helium-xenon centrifugal compressor had a high surge margin of 29.8%,and the tip leakage vortex underwent a series of processes named"generation-development-diffusion."The proportion of internal vortex structures in the channel in-creased continuously with the flow direction.关键词
氦氙混合工质/离心压气机/工质分析/气动设计/数值模拟Key words
helium-xenon mixture/centrifugal compressor/working fluid analysis,aerodynamic design,numerical simulation分类
机械制造引用本文复制引用
王辉,刘海旭,张春梅,姜玉廷..氦氙混合工质离心压气机气动设计与性能研究[J].哈尔滨工程大学学报,2025,46(7):1333-1339,7.基金项目
上海空间推进研究所创新基金项目(G4820045). （G4820045）
