轴流压气机叶型气动优化设计  

Aerodynamic Optimization Design of Axial-flow Compressor Blade

作　　者：钟主海[1] 陈洪粉 ZHONG Zhuhai;CHENG Hongfen(Dongfang Turbine Co.,Ltd.,Deyang Sichuan,618000)

机构地区：[1]东方电气集团东方汽轮机有限公司,四川德阳618000

出　　处：《东方汽轮机》2023年第3期1-5,36,共6页Dongfang Turbine

摘　　要：以某轴流压气机动叶根部10%叶高典型截面叶型为研究对象,采用CFD软件计算分析不同气流角下叶型流场损失及气动特性。结果表明:随着入口气流角增加,出口总压损失先减小后增大,接近设计角度时总压损失最小。同时,运用基于自主开发的参数化叶型优化设计平台,采用三维N-S方程流场计算、网格自动生成、人工神经网络与遗传算法寻优相结合的方法对其进行了叶型型线优化设计,通过流场分析,优化效果显著。With the help of commercial CFD software,the aerodynamic characteristics of the cascade under different incidence angle is carried out for a axial compressor blade.Results show that the total pressure loss at the outlet decreases first and then increases with the increase of the flow angle,and at the design angle becomes smallest.With the help of parameterized blade profile optimization design platform,the optimization design for blade profile is carried out for the axial-flow compressor blade.And it is based on the methods consist of 3D Navier-Stokes flow computation,mesh generation automatically,artificial neural network and genetic algorithm.The optimization effect is notable through the analysis of flow field.

关 键 词：轴流压气机 优化设计 平面叶型 数值模拟 

分 类 号：TH453[机械工程—机械制造及自动化]