西华大学学报（自然科学版）2017，Vol.36Issue(2)：6-9,86,5.DOI:10.3969/j.issn.1673-159X.2017.02.002
基于FLUENT的全焊接球阀在不同介质下流场的模拟及分析
Simulation and Analysis of Flow Field Based on FLUENT Software in All-welded Ball Valve Under Different Media
张希恒 1王廷 1焦元阳 1冯明1
作者信息
- 1. 兰州理工大学石油化工学院,甘肃兰州730050
- 折叠
摘要
Abstract
FLUENT software is utilized to numerically simulate internal three-dimensional flow field of all-welded ball valve (cylindrical) and the simulation is used to explore the flow characteristics of the valve from closing to opening fully.Taken incompressible medium as an example,ball valve's internal flow field changing situation was analyzed under 7 different open degrees (10％,30％,50％,70％,90％,100％),and the valve inlet and outlet pressure and flow rate were obtained.Then the flow resistance coefficient was worked out and the water flow coefficient under different opening degree was calculated.By compared the properties of compressible and incompressible medium and using density ratio conversion,the flow coefficient of compressible natural gas under different open degrees was computed and the relationship between compressible gas flow coefficient and opening degree was obtained.Simulation results were in accordance with realities.The research has guiding significance for the study that the flow state of compressible medium in ball valve.关键词
全焊接球阀/可压介质/流阻系数/流量系数/流量特性Key words
all-welded ball valve/compressible medium/flow resistance coefficient/flow coefficient/flow characteristics分类
机械制造引用本文复制引用
张希恒,王廷,焦元阳,冯明..基于FLUENT的全焊接球阀在不同介质下流场的模拟及分析[J].西华大学学报（自然科学版）,2017,36(2):6-9,86,5.
