| 调节阀内三维流动与启闭过程的数值模拟及分析 |
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| 引用本文： | 石娟,姚征,马明轩.调节阀内三维流动与启闭过程的数值模拟及分析[J].上海理工大学学报,2005,27(6):498-502. |
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| 作者姓名： | 石娟 姚征 马明轩 |
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| 作者单位： | 1. 上海理工大学,动力工程学院,上海,200093
2. 吴忠仪表股份有限公司,宁夏,751100 |
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| 基金项目： | 上海市科技发展基金资助项目（041958065） |
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| 摘 要： | 运用计算流体力学方法（CFD）对调节阀的定常与非定常水力特性进行了数值模拟．定常模拟得到各种开度下的三维流场分布以及压降与流量的特性曲线，特性曲线与试验结果相吻合．非定常计算模拟了阀门开启和关闭过程中流动特性的变化，得到流量和阀芯轴向力随时间变化曲线，并对启闭速度的影响进行了分析．
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| 关 键 词： | CFD数值模拟 调节阀 流量特性 启闭过程 |
| 文章编号： | 1007-6735（2005）06-0498-05 |
| 收稿时间： | 2005-04-21 |
| 修稿时间： | 2005年4月21日 |
Numerical simulation and analysis of the 3-D flow and opening-closing processes in control valve |
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| SHI Juan,YAO Zheng,MA Ming-xuan.Numerical simulation and analysis of the 3-D flow and opening-closing processes in control valve[J].Journal of University of Shanghai For Science and Technology,2005,27(6):498-502. |
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| Authors: | SHI Juan YAO Zheng MA Ming-xuan |
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| Institution: | 1. College of Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; 2. Wuzhong Instrument Limited Company, Ningxia 751100, China |
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| Abstract: | The CFD method is employed to simulate numerically the steady and unsteady hydraulic characteristics of an ATS control valve. The steady simulations provide the three dimensional distribution of the flow field and the hydraulic characteristic curves of flow rate and pressure drop under various openings. The comparison between the calculated and experimental results shows good coincidence. The unsteady change during the opening and closing process of the valve are simulated numerically. The curves of the flow rate and the axial force exerting on the valve cone by the fluid changing with the time are given and the analysis of the influence of the opening and closing velocities is carried out. |
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| Keywords: | CFD numerical simulation control valve flow-rate characteristics opening-closing process |
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