组合式临界流文丘里喷嘴在试车台流量测量的应用论述  

Discussion on the Application of Combined Critical Flow Venturi Nozzle in Test-Bed Flow Measurement

作　　者：马帅 石奇玉 周磊[1] 叶斌[1] Ma Shuai;Shi Qiyu;Zhou Lei;Ye Bin(Beijing Institute of Aerospace Testing Technology,Beijing 100074)

机构地区：[1]北京航天试验技术研究所,北京市100074

出　　处：《仪器仪表标准化与计量》2022年第2期26-28,共3页Instrument Standardization & Metrology

摘　　要：针对航空发动机流量测量的技术需求,梳理了组合式临界流文丘里喷嘴在多个国家试车台中的应用。通过国内外应用的对比,揭示了技术差距,提出了组合式临界流文丘里喷嘴后续发展的关键方向。According to the technical requirements of aero-engine flow measurement, the application of combined critical flow Venturi nozzles in test-bed in many countries was reviewed. Through the comparison of domestic and foreign applications, the technical gap was revealed, and the key direction of the future development of the combined critical flow venturi nozzle was proposed.

关 键 词：组合式 临界流文丘里喷嘴 试车台 流量测量 流出系数 不确定度 

分 类 号：TH814[机械工程—仪器科学与技术]