摘要
为提高气举的设计效率、保证设计的可靠性和精确性,基于Fluent软件平台,采用VOF多相流模型,对锥形气-水两相向上流动过程进行仿真分析。仿真结果表明:当表观液速一定、表观气速在6~14 m/s时,随表观气速增大可依次得到弹状流、搅拌流和环状流流型;不同流型下空隙率的表现形式不同,可从空隙率推断两相流流型;表观液速一定时,空隙率均值随表观气速增大而增大。
In order to improve the design efficiency of gas lift and ensure the reliability and accuracy of the design,based on the Fluent software platform,adopts the VOF multiphase flow model to simulate and analyze the conical gas-water two-phase upward flow process.The simulation results show that when the superficial liquid velocity is constant and the superficial gas velocity is in the range of 6~14 m/s,the flow patterns of slug flow,stirring flow and annular flow can be sequentially obtained as the superficial gas velocity increases;the manifestation of the void fraction under diffevent flow patterns is different,and the two-phase flow pattern can be inferred from the void fraction;when the superficial liquid velocity is constant,the average void fraction increases with the increase of the superficial gas velocity.
作者
胡东
苑颖慧
谭志成
王舒
林鹏
Hu Dong;Yuan Yinghui;Tan Zhicheng;Wang Shu;Lin Peng(College of Energy and Mechanical Electrical Engineering,Hunan University of Humanities,Science and Technology,Loudi 417000,China)
出处
《煤矿机械》
2022年第3期41-43,共3页
Coal Mine Machinery
基金
湖南省重点研发计划(2019SK2192,2020NK2063)
湖南省水利科技项目(XSKJ2019081-56)
湖南省大学生创新创业训练计划项目(S201910553021)
湖南省教育厅重点科研项目(18A419)。
关键词
两相流
空隙率
数值模拟
two-phase flow
void fraction
numerical simulation
