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contributor authorC. A. Hale
contributor authorM. W. Plesniak
contributor authorS. Ramadhyani
date accessioned2017-05-09T00:03:38Z
date available2017-05-09T00:03:38Z
date copyrightJuly, 2000
date issued2000
identifier issn0889-504X
identifier otherJOTUEI-28679#553_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/124475
description abstractThe adiabatic, steady-state liquid crystal technique was used to measure surface adiabatic film cooling effectiveness values in the near-hole region (X/D<10). A parametric study was conducted for a single row of short holes (L/D≤3) fed by a narrow plenum (H/D=1). Film cooling effectiveness values are presented and compared for various L/D ratios (0.66 to 3.0), three different blowing ratios (0.5, 1.0, and 1.5), two different plenum feed configurations (co-flow and counterflow), and two different injection angles (35 and 90 deg). Injection hole geometry and plenum feed direction were found to affect short hole film cooling performance significantly. Under certain conditions, similar or improved coverage was achieved with 90 deg holes compared with 35 deg holes. This result has important implications for manufacturing of thin-walled film-cooled blades or vanes. [S0889-504X(00)00603-6]
publisherThe American Society of Mechanical Engineers (ASME)
titleFilm Cooling Effectiveness for Short Film Cooling Holes Fed by a Narrow Plenum
typeJournal Paper
journal volume122
journal issue3
journal titleJournal of Turbomachinery
identifier doi10.1115/1.1303705
journal fristpage553
journal lastpage557
identifier eissn1528-8900
keywordsFlow (Dynamics) AND Cooling
treeJournal of Turbomachinery:;2000:;volume( 122 ):;issue: 003
contenttypeFulltext


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