流体机械2017，Vol.45Issue(9)：40-44,39,6.DOI:10.3969/j.issn.1005-0329.2017.09.008
组合型周向槽机匣处理优化方案的数值研究
Numerical Investigation of Optimized Schemes of the Combined Circumferential Groove Casing Treatment
徐志晖 1洪林1
作者信息
- 1. 沈阳航空航天大学,辽宁沈阳 110136
- 折叠
摘要
Abstract
In order to investigate the stabilizing effect of circumferential groove casing treatment with combined scheme of different groove depth at the meridian plane of a compressor,four schemes of casing treatment was designed with combined circumferential grooves of different depths for the transonic rotor cascade of rotor 37.The investigation of numerical simulation has revealed that at the design rotational speed,the stall margin of the rotor with circumferential groove casing treatment can be increased to a certain extent.The stall margin of the optimum scheme was increased from 9.65% to 16.42% with only 0.87%efficiency reduction.Furthermore,the installation of the shallow circumferential grooves at the rear of the blade chord length can improve the stall margin even better.关键词
机匣处理/周向槽/组合/稳定裕度/数值模拟Key words
casing treatment/circumferential groove/assembled/stall margin/numerical simulation分类
机械制造引用本文复制引用
徐志晖,洪林..组合型周向槽机匣处理优化方案的数值研究[J].流体机械,2017,45(9):40-44,39,6.
