| 降低风机动叶尖间隙涡流噪声研究 |
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| 引用本文： | 胡如夫,李志敏.降低风机动叶尖间隙涡流噪声研究[J].宁波大学学报(理工版),1997(3). |
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| 作者姓名： | 胡如夫 李志敏 |
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| 作者单位： | 宁波高等专科学校机械系(胡如夫)，宁波华联房地产开发公司(李志敏) |
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| 摘 要： | 气流流过动叶叶尖引起的不规则流动产生的间隙涡流噪声是轴流风机涡流噪声的主要组成部分，采用减小动叶叶尖间隙方法不仅可抑制和减小间隙涡流的产生，有效地降低轴流风机的涡流噪声，而且可改善气动性能。同时可预测、该方法也有利于减小间隙涡流产生的二次流及流动尾迹时下静叶的干扰噪声
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| 关 键 词： | 叶尖间隙，涡流噪声，轴流风机 |
STUDIES OF REDUCING GAP-VORTEX NOISESTIMULATED BY THE TIP OF THE ROTER BLADES |
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| Hu Rufu..STUDIES OF REDUCING GAP-VORTEX NOISESTIMULATED BY THE TIP OF THE ROTER BLADES[J].Journal of Ningbo University(Natural Science and Engineering Edition),1997(3). |
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| Authors: | Hu Rufu |
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| Abstract: | The gap-vortex noise generated by unregular flow in the tip of the roter blades is the main part of the vortex noise. By means of reducing the gap between thetip of the roter blades and case of the fan can restrain and reduce the vortex noise, and can improve air-dynamic characters of the fan. The method is also useful to reduce the stimulated vortex generated by gap-vortex and the noise generated by rotor-wake-state interaction. |
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| Keywords: | tip gap vortex noise axial flow fan |
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