可调静叶角度精度对多级压气机气动性能的影响
The Influence of Angle Precision of Variable Stator Vane on the Multistage Compressor Performance
刘自勉 1樊琳 2冯俊达 2滕金芳3
作者信息
- 1. 上海交通大学航空航天学院,上海 200240;中国航发商用航空发动机有限责任公司,上海 200241
- 2. 中国航发商用航空发动机有限责任公司,上海 200241
- 3. 上海交通大学航空航天学院,上海 200240
- 折叠
摘要
为了获得可调静叶的角度精度对多级压气机的气动性影响情况,对某11 级高压压气机的S1、R2 和S2 共三排叶片开展了全三维数值模拟研究,通过调整S1 静叶开、关角度值分析可调静叶角度偏差的量化影响.研究结果表明:可调静叶调节精度越高,则压气机越匹配设计点工况,气动性能则越好;可调静叶角度精度为±1°时对压气机的效率影响不大;但可调静叶角度精度在关闭3°时,效率损失最大达0.31%,静叶根部压力面流动分离明显增大.
Abstract
In order to obtain the influence of the adjustment accuracy of variable stator vane on the aero-dynamic performance of multistage compressors,three rows of S1,R2 and S2 blades of an 11-stage high-pressure compressor were simulated in full 3D.The quantitative influence of the angle error of var-iable stator vane was analyzed by adjusting S1 stator angle.The results show that the higher the adjust-ment accuracy of variable stator vane is,the more the compressor matches the design condition and the better the aerodynamic performance is.When the angle accuracy of variable stator vane is±1°,it has little effect on compressor efficiency.However,when the angle accuracy of variable stator vane is closed at 3°,the maximum efficiency loss is 0.31%,and the flow separation of the pressure surface of the stator near the hub obviously increases.
关键词
多级压气机/可调静叶/数值模拟/效率/喘振裕度Key words
multistage compressor/variable stator vane/numerical simulation/efficiency/stall margin引用本文复制引用
出版年
2024
NETL
NSTL
万方数据