某重型燃气轮机一级动叶气热耦合数值模拟  

Numerical Investigation of Supercritical CO_2 Centrifugal Compressors Characteristics

作　　者：丁勇能[1] 杨帆[1] 田勇[2,3] 王波[2,3,4] DING Yongneng YANG Fan TIAN Yong WANG Bo(Hangzhou Huadian Banshan Power Generation Corporation, Zhejiang Hangzhou 310015, China Key laboratory of Advanced Energy and Power, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China Research Center for Clean Energy and Power, Chinese Academy of Sciences, Jiangsu Lianyungang 222069, China University of Chinese Academy of Sciences, Beijing 100049, China)

机构地区：[1]杭州华电半山发电有限公司,杭州310015 [2]中国科学院工程热物理研究所先进能源动力重点实验室,北京100190 [3]中国科学院能源动力研究中心,江苏连云港222069 [4]中国科学院大学,北京100049

出　　处：《燃气轮机技术》2017年第3期32-36,共5页Gas Turbine Technology

基　　金：中国华电集团科技创新项目(HDPIKJ13-02-08)

摘　　要：数值模拟是开展燃气轮机部件性能分析的重要手段,但是透平动叶工况与结构高度复杂,要开展完整全三维结构的气热耦合分析存在较大挑战。本文通过外形3D扫描与内型工业CT扫描获得了某重型燃气轮机透平一级动叶的关键几何数据,综合燃气轮机整体工况参数分析等相关信息,对一级动叶实现了完整的三维建模并进行了高质量网格划分,然后开展了单排动叶气热耦合数值模拟。计算获得透平气动效率较高,表面平均温度值比较合理,主要高温点也与透平实际烧蚀点比较吻合。相关结果可为透平动叶故障分析与设计改进提供参考。Numerical simulation is an important approach of performance analysis for gas turbine parts. However, the extremely complex geometry and operation conditions give great challenge for the aero-thermal conjugate calculation of turbine blades. By 3D scanning of external profile and industrial CT of internal profile, along with the overall operation data of the gas turbine, this paper obtains the full geometry of the a turbine blade, and high quality mesh is generated for the model. Then, a full 3D aero-thermal conjugate simulation has been accomplished. It is found that the turbine aerodynamics efficiency is high, the averaged surface temperature is reasonable, and the high temperature spots agree well with the actual locations of erosion. These results offer a reference for failure analysis and improving design of turbine blades.

关 键 词：透平冷却 3D扫描 工业CT 耦合计算 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]