Numerical Simulation of Gas-LiquId Flow in a Horizontal Elbow  

作　　者：Lihui Ma Wei Li Yuanyuan Wang Pan Zhang Lina Wang Xinying Liu Meiqin Dong Xuewen Cao Jiang Bian 

机构地区：[1]Technical Inspection Center,Sionpec Shengli Oilfield Company,Dongying,257000,China [2]College of Pipeline and Civil Engineering,China University of Petroleum(East China),Qingdao,266580,China [3]School of Petroleum Engineering,Yangtze University,Wuhan,430100,China

出　　处：《Fluid Dynamics & Materials Processing》2025年第1期107-119,共13页流体力学与材料加工(英文)

基　　金：supported by the Ministry of Industry and Information Technology High Tech Ship Special Project(Grant No.CBG3N21-2-6).

摘　　要：Gas-liquid flow(GLF),especially slug and annular flows in oil and gas gathering and transportation pipelines,become particularly complex inside elbows and can easily exacerbate pipeline corrosion and damage.In thisstudy,FLUENT was used to conduct 3D simulations of slug and annular flow in elbows for different velocitiesto assess the ensuing changes in terms of pressure.In particular,the multifluid VOF(Volume of Fraction)modelwas chosen.The results indicate that under both slug and annular flow conditions,the pressure inside the elbow islower than the outside.As the superficial velocity of liquid and gas increase,the pressure and liquid flow velocityat different positions of the elbow also increase,while the secondary flow weakens.Under annular flow conditions,the liquid film on the outer side of the elbow is thicker than that on the inner side,and the liquid velocityin the main liquid film zone is the lowest.

关 键 词：Gas-liquid flow ELBOW CFD VOF model 

分 类 号：R73[医药卫生—肿瘤]