| 基于动网格的液压阀阀芯启闭中的液动力分析 |
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| 引用本文： | 何晓晖,孙宏才,程健生,李峰.基于动网格的液压阀阀芯启闭中的液动力分析[J].解放军理工大学学报,2011,0(5):491-495. |
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| 作者姓名： | 何晓晖 孙宏才 程健生 李峰 |
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| 作者单位： | 1.解放军理工大学 工程兵工程学院，江苏 南京 210007； 2.总装备部 工程兵科研二所，北京 100093 |
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| 基金项目： | 国家自然科学基金资助项目（50578157）；中国博士后科学基金资助项目（20080431372）. |
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| 摘 要： | 为了深入研究液压阀阀芯启闭过程中阀芯上的压强分布和液动力,采用动网格技术,数值模拟了液压球阀阀芯开启与闭合过程中的非定常流场.将阀芯作为运动实体,阀芯的运动由其所受的流体力、弹簧力及自身重力确定,随着阀芯的运动,相应流场计算区域的边界也随着发生变化,获得了球阀启闭过程中不同瞬时阀腔内的压力场.在此基础上,分析了液压阀在...
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| 关 键 词： | 动网格 液压球阀 液动力 |
| 收稿时间： | 2009-01-16 |
| 修稿时间： | 2009-01-16． |
Numerical analysis on flow force of moving ball valve with dynamic mesh |
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| HE Xiao-hui,SUN Hong-cai,CHENG Jian-sheng and LI Feng.Numerical analysis on flow force of moving ball valve with dynamic mesh[J].Journal of PLA University of Science and Technology(Natural Science Edition),2011,0(5):491-495. |
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| Authors: | HE Xiao-hui SUN Hong-cai CHENG Jian-sheng and LI Feng |
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| Institution: | 1. Engineering Institute of Corps of Engineers, PLA Univ.of Sci. &; Tech., Nanjing 210007, China; 2. No.2 Institute of Engineer Corps, General Armament Department, Beijing 100093, China |
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| Abstract: | The unsteady flow and the flow force in the hydraulic ball valve with the moving ball was simulated by dynamic mesh technology. The ball laid in the hydraulic valve was taken as a movement entity. With the ball moving, the boundary of the corresponding flow field changed. The pressure distribution in different moments were obtained. Then the flow force of the hydraulic ball valve was analyzed when the ball was moving. The numerical results of the static fluid force are basically in accord with the theoretical results. The analysis results are helpful to the design and the optimization of the hydraulic ball. |
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| Keywords: | dynamic mesh hydraulic ball valve flow force |
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