预测气液两相分层流界面剪切应力的新方法

doi:10.11885/j.issn.1674-5086.2013.12.10.03

西南石油大学学报(自然科学版)

预测气液两相分层流界面剪切应力的新方法

郑平1，赵梁2 *，刘永铭1

1. 辽宁石油化工大学石油天然气工程学院，辽宁抚顺113001
2. 四川大学水利水电学院水力学与山区河流开发保护国家重点实验室，四川成都610207

出版日期:2015-12-01 发布日期:2015-12-01
通讯作者: 赵梁，E-mail：zhaoliang_lnpu@163.com

A New Method for Predicting Interfacial Shear Stress of Stratified#br# Gas-liquid Two-phase Flow

Zheng Ping1, Zhao Liang2*, Liu Yongming1

1. College of Petroleum Engineering，Liaoning Shihua University，Fushun，Liaoning 113001，China
2. State Key Laboratory of Hydraulics and Mountain River Engineering，College of Hydraulic and Hydra-electric Engineering，Sichuan University，
Chengdu，Sichuan 610207，China

Online:2015-12-01 Published:2015-12-01

摘要/Abstract

摘要：

针对水平管气液两相分层流界面剪切应力的预测，建立了基于计算流体力学（CFD）方法的剪切滑移壁面模
型，即将气液界面处理为固定的具有均匀剪切应力的水平滑移壁面。利用FLUENT 软件模拟了气相流动，气液界面采
用剪切滑移壁面边界条件，通过对比实验测量的气相流场分布得到气速和界面剪切收敛值，并由收敛值拟合得到界
面摩擦因子与气相雷诺数的关联式。应用这一关联式的预测结果与实验间接测量值吻合较好，并且在气、液相雷诺
数9 4006ReG650 000 和21 0006ReL630 000 范围内优于Taitel 和Dukler 与Sidi-Ali 和Gatignol 模型。表明剪切滑移壁
面模型可以有效地控制关键参数，提高预测效率和精度，为CFD 方法预测气液两相分层流界面剪切应力提供了新的
思路。

关键词: 气液两相分层流, CFD, 界面摩擦因子, 界面剪切应力, 剪切滑移壁面模型

Abstract:

A new Slip-shear wall model based on computational fluid dynamics（CFD）for predicting the interfacial shear
stress of stratified gas-liquid two-phase flow in horizontal pipe is established in this paper，in which the interface is considered
as a flat slip wall with uniform shear stress. The gas flow field is simulated by FLUENT. Compared with experimental values of
gas velocity properties，the convergence values of gas flow rate and interfacial shear stress are obtained，and a new constitutive
relation of interfacial friction factor and gas Reynolds number is deduced from the convergence values fitting. And the interfacial
shear stress is predicted，which is in good agreement with the experimental data，and better than that of Taitel & Dukler and Sidi-
Ali & Gatignol models when the gas Reynolds number is from 9 400 to 50 000 and the liquid Reynolds number is from 21 000
to 30 000. The results show that the slip-shear-wall model can control the key parameters effectively，improve the prediction
efficiency and accuracy，and provide a new approach to the prediction of interfacial shear stress of stratified gas-liquid flow by
CFD.

Key words: stratified gas-liquid two-phase flow, CFD, interfacial friction factor, interfacial shear stress, slip-shear-wall model

中图分类号:

郑平1，赵梁2 *，刘永铭1. 预测气液两相分层流界面剪切应力的新方法[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2013.12.10.03.

Zheng Ping1, Zhao Liang2*, Liu Yongming1. A New Method for Predicting Interfacial Shear Stress of Stratified#br# Gas-liquid Two-phase Flow[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2013.12.10.03.

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预测气液两相分层流界面剪切应力的新方法

A New Method for Predicting Interfacial Shear Stress of Stratified#br# Gas-liquid Two-phase Flow

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