摘要：This paper investigates the gas phase, including bubbles' and gas pockets' migration and evolution in gas-liquid flow in the pipelines, where the safe operation is severely influenced by the gas accumulations. To investigate the formation, as well as location and amount of these gas accumulations, a new transient model applied with the Population Balance Model (PBM), gas pockets capturing and tracking model are proposed, which are discretized and calculated in the collocated multi-grid with Eulerian-Lagrangian coupling scheme. The flow field of the pipeline is modeled with the Eulerian scheme, while the bubbles' migration, gas pockets' capturing and tracking can be modeled in the Lagrangian mesh. To couple the description of bubble-dimension and that of pipe dimension, the Rayleith-Plesset equation and the Smooth Particle Hydrodynamics (SPH) are applied, thus, the changeable characteristics of bubbles along the pipes can be described. Based on that, the bubbles' transition to the gas pocket under specific conditions can be predicted. And the subsequent capturing and tracking process will work with the help of the collocated multi-grid, which provides the accurate and parallel calculation. The relative parameters are extracted from the published experimental data, and the simulation results are in good agreement with the measured results. Meanwhile, the case studies show the model has the prediction ability of the gas phase's migration and evolution, as well as the formation and location of gas accumulations in the pipeline.

关键字：Gas accumulations; Population balance model; Gas pockets capturing and tracking model; Collocated multi-grid method; Eulerian-Lagrangian scheme

ISSN号：0920-4105

卷、期、页：卷: 208子辑: E

发表日期：2022-01-01

影响因子：4.346000

期刊分区（SCI为中科院分区）：三区

收录情况：SCIE（科学引文索引网络版）,地学领域高质量科技期刊分级目录（国外T1）

发表期刊名称：JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING

参与作者：李旺

通讯作者：陈思杭

第一作者：宋尚飞,杨桥,齐雪宇,段绪强,李晓平,史博会,宫敬

论文类型：期刊论文

论文概要：陈思杭,宋尚飞,李旺,杨桥,齐雪宇,段绪强,李晓平,史博会,宫敬，A new transient model for motion and variation of gas phase in pipelines applying collocated multi-grid method with the Eulerian-Lagrangian approach，JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING，2022，卷: 208子辑: E

论文题目：A new transient model for motion and variation of gas phase in pipelines applying collocated multi-grid method with the Eulerian-Lagrangian approach