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contributor authorM. Y. Jabbari
contributor authorK. C. Marston
contributor authorE. R. G. Eckert
contributor authorR. J. Goldstein
date accessioned2017-05-08T23:51:58Z
date available2017-05-08T23:51:58Z
date copyrightApril, 1996
date issued1996
identifier issn0889-504X
identifier otherJOTUEI-28651#278_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/117862
description abstractFilm cooling performance for injection through discrete holes in the endwall of a turbine blade is investigated. The effectiveness is measured at 60 locations in the region covered by injection. Three nominal blowing rates, two density ratios, and two approaching flow Reynolds numbers are examined. Analysis of the data reveals that even 60 locations are insufficient for the determination of the field of film cooling effectiveness with its strong local variations. Visualization of the traces of the coolant jets on the endwall surface, using ammonium-diazo-paper, provides useful qualitative information for the interpretation of the measurements, revealing the paths and interaction of the jets, which change with blowing rate and density ratio.
publisherThe American Society of Mechanical Engineers (ASME)
titleFilm Cooling of the Gas Turbine Endwall by Discrete-Hole Injection
typeJournal Paper
journal volume118
journal issue2
journal titleJournal of Turbomachinery
identifier doi10.1115/1.2836637
journal fristpage278
journal lastpage284
identifier eissn1528-8900
keywordsCooling
keywordsGas turbines
keywordsDensity
keywordsJets
keywordsFlow (Dynamics)
keywordsVisualization
keywordsMeasurement
keywordsReynolds number
keywordsCoolants AND Turbine blades
treeJournal of Turbomachinery:;1996:;volume( 118 ):;issue: 002
contenttypeFulltext


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