机械科学与技术2017，Vol.36Issue(9)：1452-1457,6.DOI:10.13433/j.cnki.1003-8728.2017.0923
前缘小叶片对高负荷扩压叶栅性能的影响
Effect of Leading Edge Little Blade on Performance of Highly Loaded Compressor Cascades
摘要
Abstract
Because of the flow separation of the corner region of compressor cascade,a little blade installed in leading edge of cascades was proposed to control the separation of corner region.After confirming the reliability of numerical simulation method with experimental data,numerical simulations were carried out to explore the effects of little blade on the performance of cascade.The results show that the aerodynamic performance at the attack angle range of-6° and 9° is improved by the use of little blade.It also decreases the total pressure loss,arises the static pressure ratio.Furthermore,little blade makes leading edge separation point of cascades corner move back,the area of the reverse flow is decreased and corner flow is improved.More fluid converges to middle of cascade,which improves the diffusion capacity of the cascade.关键词
扩压叶栅/小叶片/流动控制/角区分离Key words
compressor cascades/little blade/flow control/flow separation分类
航空航天引用本文复制引用
吴艳辉,刘军,安光耀,陈智洋,彭文辉..前缘小叶片对高负荷扩压叶栅性能的影响[J].机械科学与技术,2017,36(9):1452-1457,6.基金项目
国家自然科学基金项目(51276148,11572257,51536006)资助 （51276148,11572257,51536006）
