| 叶轮机叶片的三维造型及其对叶片气动负荷的影响 |
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| 引用本文： | 邹正平,赵令德,陈矛章,徐力平.叶轮机叶片的三维造型及其对叶片气动负荷的影响[J].航空动力学报,1998,13(3):235-241,343. |
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| 作者姓名： | 邹正平 赵令德 陈矛章 徐力平 |
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| 作者单位： | 北京航空航天大学 |
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| 摘 要： | 研究叶轮机叶片的弯扭及掠形等因素对叶片气动负荷分布的影响。给出了一个针对叶轮机内部流动的一般的掠角定义。基于线化的小扰动理论，用解析方法对叶片三维造型各因素的位势影响进行了分析，并用三维粘性数值模拟进行了验证和分析。分析结果表明，叶轮机叶片的弯扭和前缘掠形对叶片的负荷分布有重要的调节作用。合理利用三维造型的负荷调整功能可有效地调整负荷沿展向和弦向的分布，为叶型设计提供新的自由度。
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| 关 键 词： | 叶轮机械 叶片 三维流动 |
| 收稿时间： | 8/1/1997 12:00:00 AM |
| 修稿时间： | 1997/10/1 0:00:00 |
THREE-DIMENSIONAL BLADING AND ITS INFLUENCE ON BLADE AERODYNAMIC LOADING |
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| Zou Zhengping,Zhao Lingde,Chen Maozhang and Xu Liping.THREE-DIMENSIONAL BLADING AND ITS INFLUENCE ON BLADE AERODYNAMIC LOADING[J].Journal of Aerospace Power,1998,13(3):235-241,343. |
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| Authors: | Zou Zhengping Zhao Lingde Chen Maozhang and Xu Liping |
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| Institution: | 4th Dept.Nanjing University of Aeronautics and Astronautics,Beijing 100083;4th Dept.Nanjing University of Aeronautics and Astronautics,Beijing 100083;4th Dept.Nanjing University of Aeronautics and Astronautics,Beijing 100083;4th Dept.Nanjing University of Aeronautics and Astronautics,Beijing 100083 |
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| Abstract: | The effects of turbomachinery blade bow and sweep on aerodyna mic loading distribution of the blade are investigated.A general definition of sweep angle is given in the case of turbomachinery.By means of linearized small perturbation theory,the effects of each factor are analyzed respectively,then a numerical simulation for three-dimensional viscous flow is used to verify and elaborate the analytical results.It is shown that the blade bow,twist and leading edge sweep are effective in adjusting the loading distribution on the blade surface.It is possible to make rational and effective use of the three dimensional blading to adjust the loading distributions both spanwise and chordwise,it thus provides a set of means for blading optimization. |
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| Keywords: | Turbomachine Blades Three dimensional flow |
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