基于逆向工程的涡轮冷却叶片三维建模及数值模拟  

Three-Dimensional Modeling and Numerical Simulation of Turbine Cooling Blades based on Reverse Engineering

作　　者：刘言明 李东明 牛夕莹 何泉璋 LIU Yan-ming;LI Dong-ming;NIU Xi-ying;HE Quan-zhang(No.703 Research Institute of CSSC,Harbin,China,150078)

机构地区：[1]中国船舶集团有限公司第七○三研究所,黑龙江哈尔滨150078

出　　处：《热能动力工程》2021年第6期57-62,共6页Journal of Engineering for Thermal Energy and Power

基　　金：国家科技重大专项(2017-I-0011-0012);船舶与海洋工程动力系统国家工程实验室-海洋工程燃气轮机实验室。

摘　　要：针对典型涡轮冷却叶片,利用工业CT扫描、3D激光扫描、相关点云处理软件和三维建模软件,重构三维模型,进行高质量的网格划分,合理设置边界条件,对涡轮一级动叶进行气热耦合数值模拟分析。结果表明:该一级动叶叶身温度分布均匀,最高温度约935℃,低于材料可承受的温度,出现在前缘叶顶处,为涡轮叶片冷却结构的优化设计提供参考。For typical turbine cooling blade, the use of industrial Computerized tomography(CT)scanning, 3 D laser scanning, point cloud processing software and 3 D modeling software, reconstructing three-dimensional model. The mesh of high quality is created and reasonable boundary conditions are configured. The gas-thermal coupling of the first-stage rotor blade was numerically simulated. The results show that uniform temperature distribution on the blade body with the highest temperature appears at the top of the frontal lobe, about 935 ℃, lower than the temperature of the material can withstand. It can provide reference for optimal design of turbine blade cooling structure.

关 键 词：涡轮冷却叶片 工业CT扫描 3D激光扫描 冷却叶片 气热耦合 

分 类 号：TK474.811[动力工程及工程热物理—动力机械及工程]