| 弯-掠叶片对压气机叶栅端壁流动的控制作用 |
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| 引用本文： | 宋彦萍,刘振德,赵桂杰,王仲奇.弯-掠叶片对压气机叶栅端壁流动的控制作用[J].推进技术,2004,25(4):338-342. |
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| 作者姓名： | 宋彦萍 刘振德 赵桂杰 王仲奇 |
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| 作者单位： | 哈尔滨工业大学,能源科学与工程学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金项目(50236020);国家"九七三"基金项目(G1999022307). |
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| 摘 要： | 利用数值和实验方法对气动弯掠在压气机叶栅中的作用机理进行了研究。结果表明，相对于网格数目和网格类型，进、出口边界条件和湍流模型对计算和实验结果吻合的影响要大。叶片前掠改变了叶栅的三维压力场，使得低能流体重新分配。正弯与前掠的结合进一步加强了这种控制作用，为叶片设计提供了一个自由度。
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| 关 键 词： | 压气机叶片 压气机叶栅 湍流模型 自由度 |
| 文章编号： | 1001-4055(2004)04-0338-05 |
| 修稿时间： | 2003年9月19日 |
Effect of blade sweeping-curving on the endwall flow field of compressor cascade |
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| SONG Yan-ping,LIU Zhen-de,ZHAO Gui-jie and WANG Zhong-qi.Effect of blade sweeping-curving on the endwall flow field of compressor cascade[J].Journal of Propulsion Technology,2004,25(4):338-342. |
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| Authors: | SONG Yan-ping LIU Zhen-de ZHAO Gui-jie and WANG Zhong-qi |
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| Institution: | School of Energy Science and Engineering , Harbin Inst. of Technology, Harbin 150001, China;School of Energy Science and Engineering , Harbin Inst. of Technology, Harbin 150001, China;School of Energy Science and Engineering , Harbin Inst. of Technology, Harbin 150001, China;School of Energy Science and Engineering , Harbin Inst. of Technology, Harbin 150001, China |
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| Abstract: | Both numerical and experimental investigations were carried out to study the effect of aerodynamic sweeping-curving on the endwall flow field of compressor cascade. The precision of the numerical simulation depends on the inlet and outlet boundary conditions as well as the turbulence model more than the grid refinement level and the grid type. The 3-D flow field is changed completely in a forward-swept compressor cascade, which makes the low energy fluid redistribute in the flow passage. The blade both with positively curving and forward sweeping further strengthens this kind of effect, providing a freedom to the blade design. |
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| Keywords: | Compressor blade Compressor cascade Turbulence model Degree of freedom |
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