| 基于污水V型调节球阀流阻特性分析 |
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| 引用本文： | 张希恒,李跟飞,高德明.基于污水V型调节球阀流阻特性分析[J].甘肃科学学报,2014,26(3):95-98. |
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| 作者姓名： | 张希恒 李跟飞 高德明 |
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| 作者单位： | 兰州理工大学石油化工学院,甘肃兰州,730050 |
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| 摘 要： | 应用CFD数值分析方法对调节阀内部流体流动特性进行分析,以标准k-ε模型为依据,对V型调节球阀在不同开度和压差下的流场进行模拟分析.对比分析了牛顿流体和非牛顿流体在调节阀不同压差和不同开度下的流阻系数和调节阀流阻特性.并绘制不同开度、压差下流阻系数的线形图.结果表明:随着压差变化流阻系数变化不明显,随着开度的增大流阻系数逐渐减小.
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| 关 键 词： | CFD 牛顿流体 非牛顿流体 流阻特性 不同开度 压差 |
Analysis of Flow Resistance Characteristics of V-Type Regulating Ball Valves |
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| ZHANG Xi-heng,LI Gen-fei,GAO De-ming.Analysis of Flow Resistance Characteristics of V-Type Regulating Ball Valves[J].Journal of Gansu Sciences,2014,26(3):95-98. |
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| Authors: | ZHANG Xi-heng LI Gen-fei GAO De-ming |
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| Institution: | ( School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China) |
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| Abstract: | The CFD simulation method was a control valve. Based on the standard k-ε model openings and under differential pressures was dopted to analyze the internal fluid flow characteristics of the , the flow field of v-type regulating ball valves with different simulated. The flow resistance coefficient of Newtonian fluid and that of non-Newtonian fluid in different conditions were compared and analyzed. The linear graph of the flow resistance coefficient with different openings and under different pressures were drawn and the flow resistance characteristics of regulating valves was summarized. The flow resistance coefficient did not change significantly with the change of pressure difference, the flow resistance coefficient decreased withthe increase of the opening. |
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| Keywords: | CFD Newtonian fluid Non-Newtonian fluid Flow resistance characteristics Different openings Pressure difference |
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