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contributor authorWeiguo Ai
contributor authorThomas H. Fletcher
date accessioned2017-05-09T00:55:13Z
date available2017-05-09T00:55:13Z
date copyrightJuly, 2012
date issued2012
identifier issn0889-504X
identifier otherJOTUEI-926077#041020_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/150504
description abstractNumerical computations were conducted to simulate flash deposition experiments on gas turbine disk samples with internal impingement and film cooling using a computational fluid dynamics (CFD) code (FLUENT ). The standard k-ω turbulence model and Reynolds-averaged Navier–Stokes were employed to compute the flow field and heat transfer. The boundary conditions were specified to be in agreement with the conditions measured in experiments performed in the BYU turbine accelerated deposition facility (TADF). A Lagrangian particle method was utilized to predict the ash particulate deposition. User-defined subroutines were linked with FLUENT to build the deposition model. The model includes particle sticking/rebounding and particle detachment, which are applied to the interaction of particles with the impinged wall surface to describe the particle behavior. Conjugate heat transfer calculations were performed to determine the temperature distribution and heat transfer coefficient in the region close to the film cooling hole and in the regions further downstream of a row of film cooling holes. Computational and experimental results were compared to understand the effect of film hole spacing, hole size, and TBC on surface heat transfer. Calculated capture efficiencies compare well with experimental results.
publisherThe American Society of Mechanical Engineers (ASME)
titleComputational Analysis of Conjugate Heat Transfer and Particulate Deposition on a High Pressure Turbine Vane
typeJournal Paper
journal volume134
journal issue4
journal titleJournal of Turbomachinery
identifier doi10.1115/1.4003716
journal fristpage41020
identifier eissn1528-8900
keywordsFlow (Dynamics)
keywordsTemperature
keywordsHeat transfer
keywordsCooling
keywordsParticulate matter
keywordsTurbines
keywordsTurbulence
keywordsSimulation AND Coolants
treeJournal of Turbomachinery:;2012:;volume( 134 ):;issue: 004
contenttypeFulltext


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