Multiconfiguration Shape Optimization of Internal Cooling Systems of a Turbine Guide Vane Based on Thermomechanical and Conjugate Heat Transfer Analysis
Multiconfiguration Shape Optimization of Internal Cooling Systems of a Turbine Guide Vane Based on Thermomechanical and Conjugate Heat Transfer Analysis
复制标题
基于热机械和共轭传热分析的涡轮导叶内冷却系统多构型形状优化
DOI：
10.1115/1.4029852
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发表时间：
2015-06
影响因子：
--
通讯作者：
Xiao, Manyu
中科院分区：
文献类型：
--
作者：
Zhang, Weihong;Xie, Gongnan;Xu, Yingjie;Xiao, Manyu
本研究是关于在恶劣环境下涡轮机叶片内部冷却通道的形状、位置和尺寸的优化。基本目标是实现最小化平均温度并确保结构强度的设计。考虑到三维模型的计算成本过高，数值优化过程是基于二维横截面模型与现有的实验温度数据作为边界条件的热机械分析。为了模拟冷却通道，三种形状配置，即，圆，超椭圆，近表面孔，考虑和比较。采用全局收敛的移动渐近线法（GCMMA）对二维模型进行了优化。采用剪切应力输运（SST）k-ω湍流模型，对由二维模型挤压而成的三维模型进行了全共轭传热（CHT）分析，得到了三维模型的温度分布。结果表明，与原C3 X叶片相比，冷却通道的优化有效地改善了涡轮机叶片的热力性能。优化后叶片的最高温度可降低到50 K，而不降低机械强度。
This 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 cross-sectional 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 near-surface 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) k-ω 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.
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DOI：
10.1115/gt2003-38051
发表时间：
2003
期刊：
--
影响因子：
--
作者：
B. Dennis;I. Egorov;G. Dulikravich;S. Yoshimura
通讯作者：
B. Dennis;I. Egorov;G. Dulikravich;S. Yoshimura
DOI：
--
发表时间：
1983-05
期刊：
--
影响因子：
--
作者：
L. D. Hylton;M. S. Mihelc;E. Turner;D. Nealy;R. York
通讯作者：
L. D. Hylton;M. S. Mihelc;E. Turner;D. Nealy;R. York
影响因子：
--
作者：
Ahmadi, Pouria;Hajabdollahi, Hassan;Dincer, Ibrahim
通讯作者：
Dincer, Ibrahim
影响因子：
2
作者：
Kim, Kwang-Yong;Lee, Young-Mo
通讯作者：
Lee, Young-Mo
影响因子：
1.9
作者：
R. Bunker
通讯作者：
R. Bunker