基于漂移流模型的管道一维气液两相流数值仿真与分析  

Numerical Simulation and Analysis of One-dimensional Gas-liquid Two-phase Flow in Pipelines Based on Drift Flow Model

作　　者：阿衍学[1] 李建东 岳少博 周穆洁[1] A Yanxue;LI Jiandong;YUE Shaobo;ZHOU Mujie(Heilongjiang Academy of Mechanical Sciences,Harbin 150040,China;Xi'an Advanced Dynamics Incorporated,Xi'an 710075,China)

机构地区：[1]黑龙江省机械科学研究院,哈尔滨150040 [2]西安前沿动力软件开发有限责任公司,西安710075

出　　处：《机械工程师》2023年第8期132-134,138,共4页Mechanical Engineer

摘　　要：两相流模型受到双曲线性质的影响,因为很难获得雅可比矩阵的简洁解析表达式,从而限制了开发Roe型黎曼求解器。针对管道气液两相流流动现象,利用一维气液两相流漂移流模型,建立了管道一维气液两相流控制方程,采用基于时间的限制器,使用Lax-Wendroff方法求解方程组,并以此开发了数值求解器。以垂直管中油气两相流为模型算例,计算了不同时刻的管中沿管道方向的含气率分布,通过分析比较,文中采用的漂移流一维气液两相流模型和数值算法能够满足管道一维气液两相流流动的工程应用。It is well known that the multi-phase flow model suffers from the clear definition of hyperbolic nature as it is difficult to obtain a neat analytical expression for Jacobian matrix which limits us to formulate a Roe type Riemann solver.This paper focuses on the phenomenon of gas-liquid two-phase flow in pipelines,then establishes a one-dimensional gas-liquid two-phase flow control equation in pipelines based on drift flow model,and develops a numerical solver using Lax-Wendroff method and time-based limiters.Taking the oil-gas two-phase flow in a vertical pipe as an example,the distribution of void fraction along the pipeline direction at different times is calculated.Through analysis and comparison,the drift flow one-dimensional gas-liquid two-phase flow model and numerical algorithm can meet the engineering application of one-dimensional gas-liquid two-phase flow in pipelines.

关 键 词：一维两相流 Lax-Wendroff 漂移流模型 

分 类 号：TQ022.4[化学工程]