| 尾缘凹陷轴流风轮内流特性分析与降噪研究 |
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| 引用本文： | 游斌,刘东瀛,伍光辉,张敏,马列,吴克启.尾缘凹陷轴流风轮内流特性分析与降噪研究[J].工程热物理学报,2010(3). |
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| 作者姓名： | 游斌 刘东瀛 伍光辉 张敏 马列 吴克启 |
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| 作者单位： | 华中科技大学能源与动力工程学院;广东美的企业集团博士后工作站;武汉大学医学院; |
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| 摘 要： | 为减少空调室外机用低压轴流风轮叶片的颤振,改善音质,降低噪音和电机功率。本文设计了尾缘凹陷新型三叶轴流风轮,同时除对前缘局部加厚处理外,对叶片其他区域整体减薄。文中采用Navier-Stokes方程对新风轮和原风轮的内流及气动特性进行了三维数值模拟,同时对两者的流量压力曲线和噪音频谱进行了实验研究。研究表明:对轴流风轮叶片尾缘进行凹陷设计,对前缘以外的区域减薄设计,能够减轻风轮重量,降低电机负荷同时减弱转子尾迹;对叶轮前缘进行局部加厚处理可以减小叶尖颤振,降低叶片旋转频率峰值噪音,从整体上降低噪音,改善音质。
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| 关 键 词： | 空调 轴流风轮 尾缘凹陷 降噪 CFD |
INTERNAL FLOW CHARACTERISTIC ANALYSIS AND NOISE REDUCTION RESEARCH ON THE AXIAL FLOW FAN WITH THE CONCAVED TRAILING EDGE |
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| YOU Bin LIU Dong-Ying WU Guang-Hui ZHANG Min MA Lie WU Ke-Qi.INTERNAL FLOW CHARACTERISTIC ANALYSIS AND NOISE REDUCTION RESEARCH ON THE AXIAL FLOW FAN WITH THE CONCAVED TRAILING EDGE[J].Journal of Engineering Thermophysics,2010(3). |
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| Authors: | YOU Bin LIU Dong-Ying WU Guang-Hui ZHANG Min MA Lie WU Ke-Qi |
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| Institution: | 1;3;1.School of Energy and Power Engineering;Huazhong University of Science & Technology;Wuhan 430074;China;2.Wuhan University of Medical School;Wuhan 430071;3.Post Doctor Workstation;Guangdong Midea Holding Co.;Shunde 528311;China |
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| Abstract: | In order to reduce the vibration generated from the low blade pressure axial fan,to improve the quantity of sound and to decrease the noise and motor capacity,a new axial fan with the concaved trailing edge has been designed.These blades have been entirely thinned-out;however,part of the leading-edge has been thickened.In this paper,The Navier-Stoker formula analogizing 3D data was used to compare the newly designed fan and the existing fan whose internal flow charters and air-actuated features.Presenting t... |
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| Keywords: | air conditioner axial flow fan concaved trailing edge noise reduction CFD |
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