中文摘要：

透平的叶片气动、表面温度和传热系数的预测直接影响到叶片寿命、效率的评估,对设计有着极为重要的作用。其中以温度和传热系数的预测最为困难。本文分别采用结构、非结构网格,以及不同的湍流模型对C3X静叶气动分布、绝热表面温度和传热系数的数值预测进行了研究。讨论了不同网格对气动传热预测的影响,以及不同湍流模型在静叶表面绝热壁面温度和传热系数预测上的特点以及原因。

英文摘要：

The prediction of aerodynamics,surface temperature and heat transfer coefficient in gas turbine hot components can directly influence the evaluation of blade life and efficiency.Among all these,the surface temperature and heat transfer coefficient is the most difficult to predict.This article investigates the performance of different turbulence models with structured and unstructured mesh in predicting the aerodynamic distribution,adiabatic surface temperature and heat transfer coefficient of C3X vane.The impact of mesh in numerical prediction is discussed as well as the feature of different turbulence models in computational convective heat transfer.