气液两相流管道泄漏流场特性数值模拟分析  

Numerical Simulation Analysis of Leakage Flow Field Characteristics of Gas-Liquid Two-phase Flow Pipeline

作　　者：纪健 傅晓宁[2] 王毅[2] 李俊飞[2] 纪宝强 JI Jian;FU Xiao-ning;WANG Yi;LI Jun-fei;JI Bao-qiang(School of Civil and Architctural Engineering,East China University of Technology,Nanchang 330000,China;Xinjiang Oilfield Engineering Technology Company,Kelamayi 834000,China)

机构地区：[1]东华理工大学土木与建筑工程学院,南昌330000 [2]中国石油新疆油田分公司,克拉玛依834000

出　　处：《科学技术与工程》2021年第1期144-151,共8页Science Technology and Engineering

基　　金：国家自然科学基金(51774313)。

摘　　要：气液两相流管道声波泄漏检测技术在研究过程遇到流动参数无法准确测量难题,不能充分了解泄漏声源特性,阻碍了声波泄漏检测技术的发展。基于多相流体流动过程中声场和流场是密不可分的,且两者之间相互作用、相互影响。为补充实验研究和理论分析不足,利用ANSYS软件,建立了简化的管道泄漏几何模型,采用Fluent动网格技术和自定义函数编程实现气液两相流管道泄漏开启过程和完成的流场模拟。通过对比分析泄漏流场各参数变化分析得到泄漏声源特性,与理论相验证。进一步分析分层流、波浪流、段塞流三种流型下泄漏过程流场参数变化,得到各流型泄漏开启过程的声场变化,深入探讨气液两相流管道泄漏声源产生机理,为声波检测技术提供理论支持。In acoustic leakage detection technology for gas-liquid two-phase flow pipeline,it is difficult to accurately measure the flow parameters and fully understand the characteristics of the leakage sound source,which hinders the development of acoustic leakage detection.In a multiphase flow process,interaction between sound field and flow field is inseparable.To fill the blank in the experimental and theoretical analysis,a simplified geometric model of pipeline leakage was established using ANSYS software.Fluent dynamic grid technology and user-defined functions programming were used to simulate the leakage opening process and flow field in gasliquid two-phase flow pipeline.By comparing the parameters of the leakage flow field,the characteristics of the leakage acoustic source was obtained and verified theoretically.Furthermore,the flow field parameters of stratified flow,wave flow,and slug flow were analyzed.The changes of sound field during the opening process of each flow pattern leakage were explained.Therefore,the results of this study provide a theoretical support to the acoustic detection technology.

关 键 词：数值模拟 气液 两相流 流场 声场 

分 类 号：TE832.1[石油与天然气工程—油气储运工程]