Gas Dynamic Modernization of Axial Uncooled Turbine by Means of CFD and Optimization Software

2017 International Conference on Aerospace Technology, Communications and Energy Systems

航空航天工程;无线电电子学;能源学

Marchukov, E.Yu.^1 ; Egorov, I.N.^1

Lyulka Design Bureau, Moscow, Russia^1

关键词: 3-d numerical models;    Low-pressure turbines;    Multicriteria optimization;    Optimization problems;    Optimization software;    Three-dimensional shape;    Turbine efficiency;    Turbine operation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/302/1/012027/pdf
DOI  :  10.1088/1757-899X/302/1/012027

学科分类：航空航天科学

来源: IOP

【 摘 要 】

The results of multicriteria optimization of three-stage low-pressure turbine are described in the paper. The aim of the optimization is to improve turbine operation process by three criteria: turbine outlet flow angle, value of residual swirl at the turbine outlet, and turbine efficiency. Full reprofiling of all blade rows is carried out while solving optimization problem. Reprofiling includes a change in both shape of flat blade sections (profiles) and three-dimensional shape of the blades. The study is carried out with 3D numerical models of turbines.