|本期目录/Table of Contents|

[1]王立红,金英子,张立. 小型风扇叶顶间隙内部流动数值模拟[J].浙江理工大学学报,2011,28(01):73-78.
 WANG Li hong,JIN Ying zi,ZHANG Li. Numerical Simulation on the Small Cooling Fan Internal Flowing[J].Journal of Zhejiang Sci-Tech University,2011,28(01):73-78.
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 小型风扇叶顶间隙内部流动数值模拟()
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浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
第28卷
期数:
2011年01期
页码:
73-78
栏目:
出版日期:
2011-02-28

文章信息/Info

Title:
 Numerical Simulation on the Small Cooling Fan Internal Flowing
文章编号:
16733851 (2011) 01007306
作者:
 王立红1 金英子1 张立2
 1. 浙江理工大学机械与自动控制学院, 杭州 310018; 2. 浙江经贸职业技术学院应用工程系, 杭州 310018
Author(s):
 WANG Lihong JIN Yingzi ZHANG Li
 1. School of Mechinery & Automation, Zhejiang SciTech University, Hangzhou 310018, China; 〖JP2〗2. Applied Engineering Department, Zhejiang Economic & Trade Polytechnic., Hangzhou 310018, China
关键词:
 小型风扇 叶顶间隙 回转面 涡流 二次涡
分类号:
TM925.11
文献标志码:
A
摘要:
     通过对不同叶顶间隙小型风扇内部数值模拟,得出不同叶顶间隙小型风扇的静特性曲线、相同S面间隙涡流变化及叶顶到机闸内表面各回转面涡流变化。研究得出:当流量Q小于0.0065 m3/s时,4个不同叶顶间隙的总压变化趋势一致, 均随叶顶间隙的增加总压减小。流量增加时,叶顶间隙为2.5 mm时性能较好;在相同S面上,间隙涡流现象随叶顶间隙的增大而减弱;对于同一个风扇模型,轮毂到叶顶之间不同回转面上无涡流出现,叶顶到机闸内表面之间不同回转面涡强随半径增加而增强,在r=43.5所对应的回转面上达到最大,在机闸对应的回转面上涡强减弱,且出现二次涡;当其他条件不变、只改变叶顶间隙时,相同半径回转面上的涡强随着叶顶间隙的增加而减弱,且涡核逐渐沿吸力面弧线向下游移动。最大涡强均出现在r=43.5回转面上,且叶顶间隙为2 mm和3 mm时,回转面上出现较明显的二次涡。以上结论为分析不同叶顶间隙对小型风扇气动性能的影响提供了一定的理论依据

参考文献/References:

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备注/Memo

备注/Memo:
 收稿日期: 2010-04-01
基金项目: 浙江省科技厅重大项目(0803355E);浙江省自然科学基金(R107635);国家自然科学基金(50735004)
作者简介: 王立红(1983-),女,河北衡水人,硕士研究生,主要从事流体机械及工程的研究。
通讯作者: 金英子,电子邮箱:jin.yz@163.com
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