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contributor authorS. Ito
contributor authorR. J. Goldstein
contributor authorE. R. G. Eckert
date accessioned2017-05-08T23:04:43Z
date available2017-05-08T23:04:43Z
date copyrightJuly, 1978
date issued1978
identifier issn1528-8919
identifier otherJETPEZ-26742#476_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/90982
description abstractThe local film-cooling produced by a row of jets on a gas turbine blade is measured by a mass transfer technique. The density of the secondary fluid is from 0.75 to two times that of the mainflow and the range of the mass flux ratio is from 0.2 to three. The effect of blade-wall curvature on the film-cooling effectiveness is very significant. On the convex wall, a near tangential jet is pushed towards the wall by the static pressure force around the jet. For a small momentum flux ratio, this results in a higher effectiveness compared with that on a flat wall. At a large momentum flux ratio, however, the jet tends to move away from the curved wall because of the effect of inertia of the jet resulting in a smaller effectiveness on the convex wall. On the concave wall, the effects of curvature are the reverse of those described for the convex wall.
publisherThe American Society of Mechanical Engineers (ASME)
titleFilm Cooling of a Gas Turbine Blade
typeJournal Paper
journal volume100
journal issue3
journal titleJournal of Engineering for Gas Turbines and Power
identifier doi10.1115/1.3446382
journal fristpage476
journal lastpage481
identifier eissn0742-4795
keywordsCooling
keywordsGas turbines
keywordsBlades
keywordsMomentum
keywordsMass transfer
keywordsFluids
keywordsJets
keywordsCurved walls
keywordsDensity
keywordsInertia (Mechanics)
keywordsForce AND Pressure
treeJournal of Engineering for Gas Turbines and Power:;1978:;volume( 100 ):;issue: 003
contenttypeFulltext


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