Integrated passage design based on extended free-form deformation and adjoint optimization  

作　　者：Xin LI Tongtong MENG Weiwei Li Ling ZHOU Lucheng JI 

机构地区：[1]Institute for Aero Engine,Tsinghua University,Beijing 100084,China [2]School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China

出　　处：《Chinese Journal of Aeronautics》2023年第4期148-164,共17页中国航空学报（英文版）

基　　金：supported by the National Science and Technology Major Project of China(Nos.2017-II-0006-0020,J2019-II-0003-0023).

摘　　要：Inspired by the three-dimensional design of flow passages in turbomachinery,this study proposes the concept of integrated passage design.The capability of adjoint method for efficient optimization and the flexibility of the parameterization method based on extended free-form defor-mation have been considered to develop a feasible approach to design an integrated passage.This concept was applied to redesign a typical transonic fan,Rotor 67,and the results were analyzed by CFX.It is shown that the passage was adequately adjusted in all three dimensions and reduced the strength of shock wave and wake-induced flow.In particular,the secondary flow was appropriately reorganized and the corner separation was well controlled in the end wall region,leading to signif-icant improvements in adiabatic efficiency and diffusion.

关 键 词：TURBOMACHINERY Aerodynamic Transonic flow Integrated passage design Extended free-form defor-mation Adjoint optimization 

分 类 号：V235.1[航空宇航科学与技术—航空宇航推进理论与工程]