Experimental and numerical study on aerodynamic stability of compressor L-inlet duct

Fu-qiang Chen; Xiao-dong Ren; Yu-hong LiChun-wei Gu

首页> 外文期刊>Aerospace science and technology >Experimental and numerical study on aerodynamic stability of compressor L-inlet duct

【24h】

Experimental and numerical study on aerodynamic stability of compressor L-inlet duct

机译：Experimental and numerical study on aerodynamic stability of compressor L-inlet duct

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Total pressure loss and vortex pair are the two independent flow phenomena that affect the flow quality at the compressor L-inlet duct (CLID). Both flow phenomena do affect the compressor efficiency, aerodynamic stability and surge margin. However, no general report on the control of the two flow phenomena is found in the open literature. Therefore, in this study, a wind tunnel test bench is independently built to undertake the optical diagnostic test research of the CLID internal flow. Then, the internal flow in CLID is investigated with both the Particle Image Velocimetry (PIV) test and the numerical simulation. Furthermore, the effects of typical parameters on the CLID aerodynamic stability are investigated. Finally, based on the parametric sensitivity analysis, an orthogonal design method with array L_(16)(4~5) is adopted to achieve the optimized CLID aerodynamic design. Results show that the designed wind tunnel test bench can successfully carry out the PIV test, and the test error is controlled below 1.5%. PIV test results show that two counter rotating vortex pairs are generated at compressor inlet case annular section P-a4 (φ = 180°) and P-a5 (φ = 225°). They are believed to affect the compressor surge margin. SC60 is validated to capture the vortex pairs, DC60 is validated to capture the total pressure loss. The larger the width (a/D_4), depth (b/D_4) and cone diameter (D_0/D_4), the better the CLID aerodynamic stability. The optimized CLID aerodynamic design is achieved by the L_(16)(4~5) orthogonal design.

著录项

来源
《Aerospace science and technology》 |2023年第8期|54-70|共17页
作者
Fu-qiang Chen; Xiao-dong Ren; Yu-hong LiChun-wei Gu;
展开▼
作者单位

Beijing Key Laboratory of Health Monitoring and Self-recovery for High-end Mechanical Equipment. Beijing University of Chemical Technology, Beijing 100029, China,Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department;

Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类
关键词
Compressor L-inlet duct; Aerodynamic stability; Parameter sensibility; Particle image velocimetry (PIV); Computational fluid dynamics (CFD);

Experimental and numerical study on aerodynamic stability of compressor L-inlet duct

摘要

著录项

相关主题

期刊订阅