摘要
将优化理论引入压气机叶型设计,建立了具有自动优化设计能力的平台。该平台由自主开发的二维叶型生成程序、网格生成软件Gambit、流场计算分析软件CFX以及自主开发的优化模块组成。以某地面重型燃气轮机压气机叶型为优化对象,以总压损失系数为目标函数,流场分析中考虑转捩情况。优化设计之后,叶型气动性能有较明显改善。设计工况下叶型总压损失系数较原型下降了3.63%,非设计工况下的性能也优于原型。
A design system has been established with the ability of automatic optimization by introducing optimization theory to compressor blade design. The system consists of in-house program for 2D compressor blade design, Gambit for grid generating,CFX for flow field computation and analysis and in-house codes for optimization. In this paper,a compressor blade of a ground-based heavy-duty gas turbine has been optimized by the design system referred above. Total pressure loss coefficient is considered as object function of the optimization, and transition is especially considered in flow field analysis. After optimization, aerodynamic performance of the blade is improved, in the design point, the total pressure loss coefficient is decreased by 3.63%. At off-design condition,the performance is also much better than prototype.
出处
《汽轮机技术》
北大核心
2010年第1期9-12,16,共5页
Turbine Technology
基金
国家科技部863重大专项F级中低热值燃料燃气轮机关键技术与整级设计技术研究
关键词
地面重型燃气轮机
压气机叶型
转捩
优化设计平台
ground-based heavy-duty gas turbine
compressor blades
transition
optimization design system
