| 离心式风机内部脉动流场和旋转噪声的计算 |
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| 引用本文： | 张向军,谢壮宁.离心式风机内部脉动流场和旋转噪声的计算[J].应用力学学报,1996,13(1):30-35. |
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| 作者姓名： | 张向军 谢壮宁 |
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| 作者单位： | 合肥工业大学，汕头大学 |
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| 摘 要： | 本文定量计算了离心式风机叶轮径向面上内部脉动流场的分布以及流场参数的变化规律。进一步求得风机旋转噪声，并与实测结果吻合良好。本文的理论和方法可用于离心式风机旋转噪声的预测且可求得风机结构参数、气流参数对旋转噪声的影响，为风机的气动声学优化设计提供了依据。
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| 关 键 词： | 离心式风机 脉动 气动噪声 |
Calcluation of the inner Fluctuation Flow Field and the Rotary Noise of a Centrifugal Fan |
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| Zhang Xiangjun,Xie Zhuangning.Calcluation of the inner Fluctuation Flow Field and the Rotary Noise of a Centrifugal Fan[J].Chinese Journal of Applied Mechanics,1996,13(1):30-35. |
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| Authors: | Zhang Xiangjun Xie Zhuangning |
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| Institution: | Zhang Xiangjun;Xie Zhuangning(HeFei University of Technology)(Shan Tou University) |
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| Abstract: | In this paper,the inner fluctuation flow field and the regularities of the change of flow feild parameters are calculated in the radial direction of the impeller of a centrifugal fan. The rotary noisefrom the fan is also calculated and the agreement between the culculated results and measured resultsis quite good.The theories and methods presented in the paper can be used to predict the rotary noise level of acentrifugal fan and the effect of the structural and flow feild parameters of the fan on the rotary noiselevel so that those provide theoretical basis and method for optimizing design of the centrifugal fan inair dynamic acoustics. |
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| Keywords: | centrifugal fan fluctuation rotary noise |
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