基于CFD的调节阀流场数值模拟与实验研究
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摘要
为了对某国产调节阀进行优化设计,利用CFD方法对其内部三维流场进行数值模拟,根据模拟结果分析了不同开度下调节阀内流场流动特性,得到了速度和压力的可视化结果,计算了不同开度下调节阀流阻系数与流量系数,绘制了调节阀流量特性曲线,最后将模拟结果与实验结果进行对比。结果表明:随着调节阀开度的增大,流量增大,流阻减小,流量系数增大。数值模拟与实验分析结果吻合程度良好,进一步验证了数值模拟的可靠性,为后续对阀芯的优化设计提供依据。
For the purpose of optimizing and designing certain domestic adjusting valve, the CFD method is utilized for the numerical simulation of internal 3 D fluid field. Based on the simulation result, the flow characteristics of internal flow field for regulating valve with different opening widths is analyzed; the visual results of speed and pressure are worked out; the flow resistance coefficient and flow coefficient of regulating valve with different opening widths are calculated; the flow characteristics curve of regulating valve is drawn up, and the simulation result and experimental result are compared finally. The results show that: As the opening width of regulating valve increases, both the flow and flow coefficient increase, and the flow resistance decreases. The numerical simulation coincides with the experimental analysis result well, which further verifies the reliability of numerical simulation and provides the basis for the subsequent optimization design of the valve core.
For the purpose of optimizing and designing certain domestic adjusting valve, the CFD method is utilized for the numerical simulation of internal 3 D fluid field. Based on the simulation result, the flow characteristics of internal flow field for regulating valve with different opening widths is analyzed; the visual results of speed and pressure are worked out; the flow resistance coefficient and flow coefficient of regulating valve with different opening widths are calculated; the flow characteristics curve of regulating valve is drawn up, and the simulation result and experimental result are compared finally. The results show that: As the opening width of regulating valve increases, both the flow and flow coefficient increase, and the flow resistance decreases. The numerical simulation coincides with the experimental analysis result well, which further verifies the reliability of numerical simulation and provides the basis for the subsequent optimization design of the valve core.
引文
[ 1 ] 谢玉东,王勇,刘延俊.调节阀技术研究综述[J].化工自动化及仪表,2012,39(9):1111-1114.
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[ 4 ] Lisowski E,Grzegorz Filo.CFD Analysis of the Characteristics of a Proportional Flow Control Valve with an Innovative Opening Shape[J].Energy Conversion and Management,2016,(123):15-28.
[ 5 ] Lisowski E,Filo G.Analysis of a Proportional Control Valve Flow Coefficient with the Usage of a CFD Method[J].Flow Measurement and Instrumentation,2017,(53):269-278.
[ 6 ] 孙长周,于新海,宗新,等.内部湍流作用下调节阀外噪声的预测[J].工程热物理学报,2017,38(9):1866-1871.
[ 7 ] 宋忠荣,陶国庆,刘建峰,等.最小流量调节阀内部流场及流量特性模拟研究[J].流体机械,2014,42(5):31-34.
[ 8 ] 陶国庆,刘建峰,张绍华,等.迷宫式调节阀流量特性的数值模拟[J].流体机械,2014,42(11):50-53.
[ 9 ] 邢建文,陶成军,李伟,等.调节阀汽蚀和闪蒸的危害及应对方法[J].油气储运,2017,36(4):477-480.
[10] 王渭,陈凤官,明友,等.直通单座调节阀柱塞式阀芯型线设计方法[J].流体机械,2016,44(5):37-41,46.
[11] Guillermo Palau-Salvador,Pablo Gonzalez-Altozano,Jaime Arviza-Valverde.Three-Dimensional Modeling and Geometrical Influence on the Hydraulic Performance of a Control Valve[J].Journal of Fluids Engineering,2008,130(1):11102.
[12] 杨源泉.阀门设计手册[M].北京:机械工业出版社,2000.
[ 2 ] 张伟政,俞树荣,张希恒,等.调节阀内部流场的数值模拟与试验分析[J].兰州理工大学学报,2008,(3):65-68.
[ 3 ] 孙强,郑俊岭.数值模拟分析技术在阀门设计中的应用[J].通用机械,2013,(9):67-69.
[ 4 ] Lisowski E,Grzegorz Filo.CFD Analysis of the Characteristics of a Proportional Flow Control Valve with an Innovative Opening Shape[J].Energy Conversion and Management,2016,(123):15-28.
[ 5 ] Lisowski E,Filo G.Analysis of a Proportional Control Valve Flow Coefficient with the Usage of a CFD Method[J].Flow Measurement and Instrumentation,2017,(53):269-278.
[ 6 ] 孙长周,于新海,宗新,等.内部湍流作用下调节阀外噪声的预测[J].工程热物理学报,2017,38(9):1866-1871.
[ 7 ] 宋忠荣,陶国庆,刘建峰,等.最小流量调节阀内部流场及流量特性模拟研究[J].流体机械,2014,42(5):31-34.
[ 8 ] 陶国庆,刘建峰,张绍华,等.迷宫式调节阀流量特性的数值模拟[J].流体机械,2014,42(11):50-53.
[ 9 ] 邢建文,陶成军,李伟,等.调节阀汽蚀和闪蒸的危害及应对方法[J].油气储运,2017,36(4):477-480.
[10] 王渭,陈凤官,明友,等.直通单座调节阀柱塞式阀芯型线设计方法[J].流体机械,2016,44(5):37-41,46.
[11] Guillermo Palau-Salvador,Pablo Gonzalez-Altozano,Jaime Arviza-Valverde.Three-Dimensional Modeling and Geometrical Influence on the Hydraulic Performance of a Control Valve[J].Journal of Fluids Engineering,2008,130(1):11102.
[12] 杨源泉.阀门设计手册[M].北京:机械工业出版社,2000.