EXPERIMENTAL STUDY OF FLOW FIELDS IN THE VICINITY OF A FILM COOLING HOLE EXIT  

作　　者：Xu Hongzhou Liu Songling Xu Duchun(Department of Aeroengines and Thermal Power Engineering, NorthwestrnPolytechnical University ,Xi’an, China, 710072) 

出　　处：《Chinese Journal of Aeronautics》1997年第2期91-97,共7页中国航空学报（英文版）

摘　　要：For the first time, an important ingested flow phenomenon was discovered inexperiments at the film cooling hole exit. The trends of 3-D flow fie1ds and the fullnessfactor, Ci, were discussed in detail over a wide range of now parameters and the geometryof fan-shaped holes at this exit plane. It has been confirmed that the main reason of creat-ing longitudinal bound vortices is not the flow iri the hole but the mixing of mainstreamand jet at its exit.For the first time, an important ingested flow phenomenon was discovered inexperiments at the film cooling hole exit. The trends of 3-D flow fie1ds and the fullnessfactor, Ci, were discussed in detail over a wide range of now parameters and the geometryof fan-shaped holes at this exit plane. It has been confirmed that the main reason of creat-ing longitudinal bound vortices is not the flow iri the hole but the mixing of mainstreamand jet at its exit.

关 键 词：film cooling jet flow flow distribution VORTICES fullness factor 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]