流体机械

2001, (05) 25-27+3

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低压轴流风机噪声的数值预估
A Numerical Prediction Model for the Noise Generated From Low-pressure Axial Fans

王东宝,吕键,黄东海,朱之墀
Wang Dongbao et al

摘要(Abstract):

采用流场三维数值模拟结果 ,得到叶片边界层数据 ,再用尾流脱落模型进行低压轴流风机的噪声预估 ;两个样机实验表明 ,采用这种方法得到的预估结果和实验结果比较吻合。
The information of boundary layer of a blade is obtained from a 3-D numerical simulation for flow field in an axial fan. Then the noise of a low-pressure axial fan can be predicted using a wake-flow shedding model. It is shown from the comparison of prediction result with test data for two fans, that agreement between them was quite well.

关键词(KeyWords): 低压轴流风机;噪声预估;数值模拟;尾流脱落模型
axial flow fans,noise prediction,numerical simulation,wake-flow shedding model

Abstract:

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作者(Author): 王东宝,吕键,黄东海,朱之墀
Wang Dongbao et al

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