风圈式风量调节阀阻力特性的模拟研究

发布时间：2018-04-06 05:10

本文选题：风圈式风量调节阀　切入点：阻力系数　出处：《流体机械》2017年08期

【摘要】：为研究风圈式风量调节阀阻力系数与阀门开度半径的函数关系,以DN200的风圈式风量调节阀为研究对象,运用FLUENT对其进行数值模拟,对不同开度半径下的阀门流场和阻力系数进行分析,得到了阀门阻力系数与阀门开度半径的函数关系式。结果表明:阀门开度半径大于0.05m时,阻力系数小并且曲线变化平缓,阀门开度半径小于0.05m时,阻力系数大并且曲线陡峭变化,阀门阻力系数随着阀门开度半径减小呈指数性增长。
[Abstract]:In order to study the functional relationship between the resistance coefficient and the valve opening radius of the air-coil type air flow regulating valve, a numerical simulation of the valve with FLUENT was carried out with DN200's air-coil air flow regulating valve as the object of study.Based on the analysis of valve flow field and resistance coefficient under different opening radii, the functional relationship between valve resistance coefficient and valve opening radius is obtained.The results show that when the opening radius of the valve is greater than 0.05 m, the resistance coefficient is small and the curve changes smoothly. When the opening radius of the valve is less than 0.05 m, the resistance coefficient is large and the curve is steep.The valve resistance coefficient increases exponentially with the decrease of valve opening radius.
【作者单位】：湖南科技大学;中铁隧道勘测设计院有限公司;
【基金】：国家自科科学基金项目(U1361118) 湖南省自科科学基金项目(2015JJ2061) 湖南省教育厅优秀青年项目(16B094)
【分类号】：TH134

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