| 阶梯蜗舌蜗壳的降噪分析和实验 |
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| 引用本文： | 李栋,顾建明.阶梯蜗舌蜗壳的降噪分析和实验[J].流体机械,2004,32(2):10-12,5. |
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| 作者姓名： | 李栋 顾建明 |
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| 作者单位： | 上海交通大学,上海,200030 |
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| 摘 要： | 介绍了阶梯蜗舌技术，并将其应用于一种排油烟的离心风机运用CFD软件Fluent6．0对常规蜗舌和阶梯蜗舌蜗壳进行了二维流场的数值模拟并作了对比，从而探讨了阶梯蜗舌降噪的机理。最后分别对两种蜗壳的风机进行了噪声和其他性能参数的测量。结果：表明采用阶梯蜗舌蜗壳对于降噪是有效的。
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| 关 键 词： | 离心风机 阶梯蜗舌 蜗壳 数值模拟 噪声 |
| 文章编号： | 1005-0329(2004)02-0010-03 |
Practice and Analysis to Reduce the Fan Noise with Step-tongue Volute |
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| LI Dong,GU Jian ming$$$$.Practice and Analysis to Reduce the Fan Noise with Step-tongue Volute[J].Fluid Machinery,2004,32(2):10-12,5. |
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| Authors: | LI Dong GU Jian ming$$$$ |
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| Abstract: | Technology of step tongue volute is introduced and applied to a centrifugal fan for discharging lampblack.Two dimensional numerical simulation of flow field for centrifugal fans with traditional tongue and step tongue volute is carried out via Fluent 6.0.A comparison of flow field of centrifugal fans with two kinds of volute are made to reveal the mechanism of reducing noise of step tongue.Measurement of noise and other performance parameters for two kinds of centrifugal fans are made to show that the step tongue volute is effective to reduce the fan noise |
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| Keywords: | centrifugal fan step tongue volute numerical simulation noise |
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