Optimal Design of Non-axisymmetric Endwall with Variable-fidelity CFD Model

作     者：Liu Chen Xu-yang Zhang Ren Dai Cheng-xiong Pan Mei-bao Zhang Liu Chen;Xu-yang Zhang;Ren Dai;Cheng-xiong Pan;Mei-bao Zhang

作者机构：University of Shanghai for Science and TechnologyShanghaiChina Shanghai Electric Gas Turbine CompanyShanghaiChina 

基　　金：Chinese National Science Funds (51276116) 

出 版 物：《风机技术》 (Chinese Journal of Turbomachinery)

年 卷 期：2018年第60卷第5期

页      码：12-19页

摘      要：Non-axisymmetric endwall is numerically investigated to suppress the secondary endwall flow in a HP turbine suction *** endwall contour is represented by a non-uniform rational B-spline *** solution spaces are designed by the rule of hypercube sampling through variation of nodal radial *** most effective endwall contour is obtained through screening all available samples with surrogate-based *** show that non axisymmetric endwall reduces the turbulence kinetic energy of the passage vortex by 5.5%and the total pressure loss 1.6%.Local heat transfer coefficient is lowered on the afore passage endwall surface with a certain increment on the aft passage *** averaged heat transfer coefficient is reduced.

主 题 词：Non-axisymmetric Endwall Optimal Design Turbine Rotor Variable-FidelityCFDModel 

学科分类：080704[080704] 08[工学] 0807[工学-电子信息类] 

D　O　I：10.16492/j.fjjs.2018.05.0002

馆 藏 号：203401966...