This paper presents a computational method to investigate cooling performance of NASA-C3X cascade vane coated with thermal barrier coating (TBC), for which experimental data are available. The vane was cooled internally by air flows through radially oriented 10 channels. A three-dimensional conjugate heat transfer simulation has been performed which allows the conduction-convection on metal vane by eliminating need of multiple boundary solutions. The predicted aerodynamic and thermal loads with the effect of turbulent intensity is found to be good agreement with experimental data and inclusion of TBC leads to quantitative reduction in vane metal temperature.

中文翻译：

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航空燃气轮机发动机中径向冷却喷嘴导流叶片的共轭传热分析

本文提出了一种计算方法来研究涂有热障涂层（TBC）的NASA-C3X级联叶片的冷却性能，并为此提供了实验数据。叶片通过流经径向10个通道的气流进行内部冷却。已经进行了三维共轭传热模拟，该模拟通过消除对多个边界解的需要而允许在金属叶片上进行传导对流。发现预测的空气动力和热负荷以及湍流强度的影响与实验数据吻合良好，TBC的加入导致叶片金属温度的定量降低。