学术
端壁翼刀控制压气机叶栅二次流的机理研究
刘艳明[1] 钟兢军[2] 黄洪雁[3] 王松涛[3] 冯国泰[3]
[1]北京航空航天大学能源与动力工程学院,北京100083 [2]大连海事大学机电与材料工程学院,辽宁大连116026 [3]哈尔滨工业大学能源学院,黑龙江哈尔滨150001
摘 要:
对CDA压气机直叶栅和具有不同流向位置和不同几何参数的端壁翼刀叶栅内三维粘性流场进行了数值模拟。结果表明，端壁翼刀主要通过阻断马蹄涡压力面分支汇人通道涡和有效产生反向翼刀涡来控制二次流。加装在距叶片压力面30％节距处且高度为1／3来流附面层厚度、占据前3／4流道的翼刀布置方式为本文所给出的最佳翼刀位置。[著者文摘]
文章出处:
《空气动力学学报》-2005年23卷4期 -431-436页
分 类 号:
文献标识码:
A
文章编号:
0258-1825（2005）04-0431-06
The mechanism of end-wall fence in controlling secondary flow of compressor cascade
LIU Yan-ming, ZHONG Jing-jun, HUANG Hong-yan, WANG Song-tao, FENG Guo-tai（1.The School of Energy and Dynaimc Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100083,China; 2. The School of Electromechanics and Materials Engineering,Dalian Maritime University,Dalian 116026,China;3. The School of Energy Science and Engineering,Harbin Institute of of Technology,Harbin 150001,China）
Abstract:
The numerical simulation has been carried out on 3D viscous flowfield in CDA（controlled diffusion airfoils） compressor cascade with and without endwall fences on different streamwise locations and different geometrical parameters. The results show that endwaU fence can control secondary flow by decreasing the influx of pressure side of horse vortex into passage vortex and forming reversed fence vortex. The optimal fence is located in the foreside of the passage, about 30 % pitch far away from the pressure surface, with the height of 1/3 incoming boundary layer thickness and the length of 3/4 axial chord.[著者文摘]
Key words:
endwall fence; secondary flow; loss; compressor cascade
基金资助:
国家自然科学基金资助项目（50076009）;全国优秀博士学位论文作者专项基金资助项目（199932）
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