Numerical Simulation of Gas-LiquId Flow in a Horizontal Elbow

被引：0

作者：

Ma, Lihui ^{[1
]}

Li, Wei ^{[1
]}

Wang, Yuanyuan ^{[1
]}

Zhang, Pan ^{[1
]}

Wang, Lina ^{[1
]}

Liu, Xinying ^{[1
]}

Dong, Meiqin ^{[2
]}

Cao, Xuewen ^{[2
]}

Bian, Jiang ^{[3
]}

机构：

[1] Shengli Oilfield Co, Tech Inspect Ctr, Dongying 257000, Peoples R China

[2] China Univ Petr East China, Coll Pipeline & Civil Engn, Qingdao 266580, Peoples R China

[3] Yangtze Univ, Sch Petr Engn, Wuhan 430100, Peoples R China

来源：

FDMP-FLUID DYNAMICS & MATERIALS PROCESSING | 2025年 / 21卷 / 01期

关键词：

Gas-liquid flow; elbow; CFD; VOF model; ANNULAR-FLOW; BEHAVIOR; SLUG; OIL;

D O I：

10.32604/fdmp.2024.058295

中图分类号：

T [工业技术];

学科分类号：

08 ;

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 this study, FLUENT was used to conduct 3D simulations of slug and annular flow in elbows for different velocities to assess the ensuing changes in terms of pressure. In particular, the multifluid VOF (Volume of Fraction) model was chosen. The results indicate that under both slug and annular flow conditions, the pressure inside the elbow is lower than the outside. As the superficial velocity of liquid and gas increase, the pressure and liquid flow velocity at 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 velocity in the main liquid film zone is the lowest.

引用

页码：107 / 119

页数：13