流体机械2017，Vol.45Issue(3)：26-32,7.DOI:10.3969/j.issn.1005-0329.2017.03.006
轴流压气机转子端壁造型多目标优化的数值研究
Numerical Investigation on a Transonic Axia-flow Compressor Rotor with Multi-objective Endwall Profiling Optimization
高翔 1晁晓亮 1贾一哲1
作者信息
- 1. 中国飞行试验研究院,陕西西安 710089
- 折叠
摘要
Abstract
Reliable numerical computation method was built on rotor67.Based on this numerical computation method,optimization of non-axisymmetric endwall contouring focusing on three different objective functions were conducted.The three optimal results all improved the performances of the rotor and the maximum improvement was 0.41%.Because of the restriction of the mass flow rate during optimization,the flow fields in different span height changed to different extent.As for the regions near hub,validity of the gradient direction influences the flow field significantly.In different optimal results,the location and scope of the three-dimensional corner separation near the trailing edge of the blade altered obviously,and the gain in efficiency drops when the separation region moves backward and migrates towards spanwise direction.关键词
跨音速轴流压气机转子/非轴对称端壁造型/二次流/多目标优化Key words
transonic axial-flow compressor rotor/non-axisymmetric endwall/secondary flow/multi-objective optimization分类
机械制造引用本文复制引用
高翔,晁晓亮,贾一哲..轴流压气机转子端壁造型多目标优化的数值研究[J].流体机械,2017,45(3):26-32,7.
