Performance and Internal Flow of Cross-Flow Fan with Inlet Guide Vane
Performance and Internal Flow of Cross-Flow Fan with Inlet Guide Vane
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DOI：
10.1299/jsmeb.48.763
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发表时间：
2005-11
期刊：
影响因子：
--
通讯作者：
J. Fukutomi;Rei Nakamura
中科院分区：
文献类型：
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作者：
J. Fukutomi;Rei Nakamura
考察了入口导叶角度和长度对贯流风机性能的影响。通过在吸入区域的分舌侧安装一片导叶，使得横流风扇的性能比没有导叶的情况变得更高压力和更高效率。与转子旋转方向相反的入口流的预旋转由导叶产生。在高流量区域，由于流的预旋转增加了吸入叶栅功，并且由于高流量更避免了吸入叶栅的前缘分离，因此获得了高压和高效率。另外，在低流量区域中，能够抑制转子吸入口的涡旋侧的循环流。因此，与没有导叶的情况相比，以低功率获得了高效率。
The effect of angle and length of the inlet guide vane on the performance of the cross-flow fan was examined. By installing guide vane of one sheet in tongue division side in the suction region, the performance of the cross-flow fan becomes more high pressure and high efficient than the case without the guide vane. The prerotation of the inlet flow which is counter directional with the rotation of the rotor is generated by the guide vane. In the high flow region, the high pressure and high efficiency are obtained since the suction cascade work increases by the prerotation of the flow, and since the leading edge separation of the suction cascade is more avoided to high flow. Moreover, in the low flow region, it is possible to suppress the circulating flow in scroll side in the rotor suction inlet. Therefore, the high efficiency is obtained in the low power compared to the result without the guide vane.