能源工程2026，Vol.46Issue(3)：32-43,12.DOI:10.16189/j.nygc.2026.03.005
多孔介质涂层管外液膜流动及传热的数值模拟研究
Numerical simulation study of liquid film flow and heat transfer outside porous coated tubes
吴京栋 1张家伟 2王云朋2
作者信息
- 1. 陕西冶金设计研究院有限公司,陕西 西安 710018||中国重型机械研究院有限公司,陕西 西安 710018
- 2. 陕西冶金设计研究院有限公司,陕西 西安 710018
- 折叠
摘要
Abstract
This study investigates the falling film characteristics outside porous-coated tubes from both flow and heat transfer perspectives by combining the Volume of Fluid(VOF)method with a porous media model.The research covers liquid film spreading behavior,flow patterns,film velocity,film thickness,and heat transfer coefficients for both conventional and porous-coated tubes,and examines the influence of porosity-a key parameter-on the overall heat transfer process.Results show that the developed model accurately reproduces the liquid film spreading process,as well as the distributions of film thickness and heat transfer coefficient,on horizontal porous-coated tubes.Specifically,compared to conventional tubes,porous-coated tubes exhibit slower liquid film spreading rates,making them more prone to film accumulation,thereby reducing localized dryout caused by film rupture.Porous-coated tubes also tend to achieve lower film velocities and more uniform heat transfer than conventional tubes.For porous-coated tubes,lower porosity and thicker films lead to higher heat transfer coefficients,an effect that becomes particularly pronounced when porosity is below 0.4.关键词
降膜/多孔涂层/水平管/强化传热/数值模拟Key words
falling film/porous coating/horizontal tube/enhanced heat transfer/numerical simulation分类
能源科技引用本文复制引用
吴京栋,张家伟,王云朋..多孔介质涂层管外液膜流动及传热的数值模拟研究[J].能源工程,2026,46(3):32-43,12.
