气液混输漩涡泵内部气相分布与性能预测研究*

作者：李i1，盛英英2 日期：2009-08-18/span> 浏览：3886 查看PDF文档

气液混输漩涡泵内部气相分布与性能预测研究*

李i1，盛英英2
（1.浙江理工大学 机械与自动控制学院，浙江 杭州 310018； 2.浙江省机电设计研究院有限公司，浙江 杭州 310015）

摘要：为研究漩涡泵的气液混输性能，采用Fluent计算软件对泵内部气液两相流场进行了数值模拟。模拟结果初步揭示了该泵内气液两相流动特征,由此可知泵流道内的气泡主要集中在叶片压力面根部，气泡聚集程度随含气率的增加而增加。泵性能预测曲线与试验曲线较为吻合，说明了所采用的计算模型是基本可行的。
关键词：漩涡泵；气液两相流；数值模拟；含气率；性能预测
中图分类号：TH311文献标识码：A文章编号：1001-4551(2009)07-0032-03

Study on performance prediction and gasphase distribution in a gasliquid twophase vortex pump
LI Yi1, SHENG Yingying2
(1. Faculty of Mechanical Engineering & Automation, Zhejiang SciTech University, Hangzhou 310018, China;
2. Zhejiang Institute of Mechanical & Electrical Engineering Co., Ltd., Hangzhou 310015, China)
Abstract: Aiming at investigating the gasliquid twophase mixture transporting performance, Fluent software was applied to simulate the twophase turbulent flow in a vortex pump. The inner twophase flow features were revealed. The result shows that the bubbles in the channel distribute is mainly near the bottom of pressure side, and the aggregation degree of bubbles is enhanced with the increasing of gas volume fraction. Performance predictioncurves are consistent with the testcurves. It shows that the calculating model employed is basically feasible.
Key words: vortex pump; gasliquid twophase flow; numerical simulation; gas volume fraction; performance prediction
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