| 基于Fluent的直动式纯水溢流阀内部流场建模与仿真分析 |
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| 引用本文： | 谭宗柒,叶惠军,周玉琼,朱华玲,居绩峰.基于Fluent的直动式纯水溢流阀内部流场建模与仿真分析[J].三峡大学学报(自然科学版),2012,34(4):69-71. |
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| 作者姓名： | 谭宗柒 叶惠军 周玉琼 朱华玲 居绩峰 |
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| 作者单位： | 三峡大学机械与材料学院,湖北宜昌,443002 |
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| 摘 要： | 利用Fluent软件对直动式纯水溢流阀内部流场进行了仿真,得到了压力分布、速度矢量分布、紊流动能分布、能量耗散分布图,可以看出阀的进口处压力分布最密、流速大幅增加、紊流动能和能量耗散分布比较密集;分析了结构因素对气蚀腐蚀的影响,阀座及阀芯拐角处负压值低、气蚀严重;分别对阀座拐角处进行倒角、阀芯拐角处进行倒圆,结果表明经过结构优化后的溢流水阀气蚀现象得到明显改善.
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| 关 键 词： | 纯水液压 溢流阀 气蚀 建模与仿真 Fluent |
Modeling and Simulation Analysis of Internal Flow of Direct-acting Pure Water Relief Valve Based on Fluent |
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| Tan Zongqi
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Ye Huijun
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Zhou Yuqiong
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Zhu Hualing
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Ju Jifeng.Modeling and Simulation Analysis of Internal Flow of Direct-acting Pure Water Relief Valve Based on Fluent[J].Journal of China Three Gorges University(Natural Sciences),2012,34(4):69-71. |
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| Authors: | Tan Zongqi Ye Huijun Zhou Yuqiong Zhu Hualing Ju Jifeng |
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| Institution: | Tan Zongqi Ye Huijun Zhou Yuqiong Zhu Hualing Ju Jifeng(College of Mechanical & Material Engineering,China Three Gorges Univ.,Yichang 443002,China) |
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| Abstract: | A simulation of internal flow of a direct-acting pure water relief valve is carried out by applying Fluent.The maps of pressure distribution,velocity vectors,turbulent kinetic energy distribution and energy dissipation are obtained.At the entrance of the valve,the pressure distribution is most dense;the flow rate increased substantially;and turbulent kinetic energy and energy dissipation distributed intensive.Meanwhile,the impacts of structural factors on cavitation corrosion are analyzed.It is shown that the negative pressure is low and the cavitations is serious at the corner of the seat and spool.So that some structural optimization measures are made.The results show that the cavitations phenomenon has been significantly improved. |
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| Keywords: | pure water hydraulic pressure relief valve cavitation modeling and simulation Fluent |
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