A Novel Model for the Prediction of Liquid Film Thickness Distribution in Pipe Gas-Liquid Flows

作     者：Yubo Wang Yanan Yu Qiming Wang Anxun Liu 

作者机构：School of Thermal EngineeringShandong Jianzhu UniversityJinan250101China Shandong Technology Innovation Center of Carbon NeutralityShandong Jianzhu UniversityJinan250101China Weihai Haihe Technology Co.Ltd.Weihai264200China 

出 版 物：《Fluid Dynamics & Materials Processing》 (流体力学与材料加工（英文）)

年 卷 期：2024年第20卷第9期

页      面：1993-2006页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：support provided by Shandong Provincial Science and Technology Plan Project(No.2023TSGC0625) Natural Resources Defense Council(NRDC,K94) 

主　　题：Film thickness secondary flow void fraction pressure gradient regime transition 

摘      要：A model is proposed for liquid film profile prediction in gas-liquid two-phase flow,which is able to provide the film thickness along the circumferential direction and the pressure gradient in the flow direction.A two-fluid model is used to calculate both gas and liquid phases’flow *** secondary flow occurring in the gas phase is taken into account and a sailing boat mechanism is ***,energy conservation is applied for obtaining the liquid film thickness distribution along the *** film thickness distribution is calculated accordingly for different cases;its values are compared with other models and available experimental *** a result,the newly proposed model is tested and good performances are *** liquid film thickness distribution in small pipes and inclined pipes is also studied,and regime transition is revealed by liquid film profile *** observed inflection point demonstrates that the liquid film thickness decreases steeply along the circumference,when the circle angle ranges between 30°and 50°for gas-liquid stratified flow with small superficial velocities.