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contributor authorWang, Bingxu
contributor authorZhang, Weihong
contributor authorXie, Gongnan
contributor authorXu, Yingjie
contributor authorXiao, Manyu
date accessioned2017-05-09T01:19:42Z
date available2017-05-09T01:19:42Z
date issued2015
identifier issn0022-1481
identifier otherht_137_06_061004.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/158483
description abstractThis study concerns optimization of shapes, locations, and dimensions of internal cooling passages within a turbine vane under severe environments. The basic aim is to achieve a design that minimizes the average temperature and ensures the structural strength. Considering the prohibitive computational cost of 3D models, numerical optimization process is performed based on 2D crosssectional models with available experimental temperature data as boundary conditions of thermomechanical analysis. To model the cooling channels, three kinds of shape configurations, i.e., circle, superellipse, and nearsurface holes, are taken into account and compared. Optimization results of 2D models are obtained by using a globally convergent method of moving asymptotes (GCMMA). Furthermore, full conjugate heat transfer (CHT) analyses are made to obtain temperature distributions of 3D models extruded from 2D ones by means of shear stress transport (SST) kد‰ turbulence model. It is shown that optimization of cooling passages effectively improves the thermomechanical performances of turbine vanes in comparison with those of initial C3X vane. The maximum temperature of optimized vane could be reduced up to 50 K without degrading mechanical strength.
publisherThe American Society of Mechanical Engineers (ASME)
titleMulticonfiguration Shape Optimization of Internal Cooling Systems of a Turbine Guide Vane Based on Thermomechanical and Conjugate Heat Transfer Analysis
typeJournal Paper
journal volume137
journal issue6
journal titleJournal of Heat Transfer
identifier doi10.1115/1.4029852
journal fristpage61004
journal lastpage61004
identifier eissn1528-8943
treeJournal of Heat Transfer:;2015:;volume( 137 ):;issue: 006
contenttypeFulltext


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