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| EXPERIMENTAL STUDY OF FLOW FIELDS IN THE VICINITY OF A FILM COOLING HOLE EXIT | |
| 引用本文： | Xu Hongzhou, Liu Songling, Xu Duchun(Department of Aeroengines and Thermal Power Engineering,NorthwestrnPolytechnical University,Xi'an,China,710072). EXPERIMENTAL STUDY OF FLOW FIELDS IN THE VICINITY OF A FILM COOLING HOLE EXIT[J]. 中国航空学报, 1997, 0(2) |
| 作者姓名： | Xu Hongzhou Liu Songling Xu Duchun(Department of Aeroengines and Thermal Power Engineering NorthwestrnPolytechnical University Xi'an China 710072) |
| 作者单位： | Department of Aeroengines and Thermal Power Engineering，NorthwestrnPolytechnical University，Xi'an，China，710072 |
| 摘 要： | Sofar,filmcoolingisextensivelyadoptedforprotectinghightemperaturepartsingasturbine.Manyresearchworksarefocusedonflow[1~3Jandheattransfer[4'5jinthedownstreamofthecircularhole,buttheflowcharacteristicsattheholeexit,especiallyforflaredholeexit,arenotreportedatpresent.Inordertodesignasuitab1eholeshapeforpracticalcoolingandprovideplentyexperimentaldataforverificationofcomputercodes,adetai1edexperimentalin-vestigationabout3-Dflowfieldsattheexitofasinglecircularandfan-shapedholehasbeencompleted.1Exp… |
EXPERIMENTAL STUDY OF FLOW FIELDS IN THE VICINITY OF A FILM COOLING HOLE EXIT |
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| Xu Hongzhou, Liu Songling, Xu Duchun. EXPERIMENTAL STUDY OF FLOW FIELDS IN THE VICINITY OF A FILM COOLING HOLE EXIT[J]. Chinese Journal of Aeronautics, 1997, 0(2) | |
| Authors: | Xu Hongzhou Liu Songling Xu Duchun |
| Abstract: | 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. |
| Keywords: | film cooling jet flow flow distribution vortices fullness factor |
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