Level-set based numerical simulation of film condensation in a vertical downward channel flow

被引：11

作者：

Lee, Hyunseung ^{[1
]}

Son, Gihun ^{[1
]}

机构：

[1] Sogang Univ, Dept Mech Engn, 35 Baekbeom Ro, Seoul 04107, South Korea

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2018年 / 95卷

关键词：

Channel flow; Film condensation; Level-set method; Wavy interface motion; INTERNAL CONDENSING FLOWS; INCOMPRESSIBLE 2-PHASE FLOWS; SHARP INTERFACE METHOD; HEAT-TRANSFER; UNSTEADY SIMULATIONS; PHASE-CHANGE; FLUID METHOD; SURFACE; STEADY; VAPOR;

D O I：

10.1016/j.icheatmasstransfer.2018.05.001

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Numerical simulation of film condensation in a vertical downward channel flow is performed by employing the sharp-interface level-set method which can accurately implement the saturation temperature and phase-change mass flux conditions at the liquid-vapor interface. An analytical model for the internal film condensation is also developed by including the effect of vapor flow in the classical Nusselt model. The numerical results for film condensation in the laminar regime show good agreement with the analytical solutions. The level-set method is applied to investigate the effects of vapor velocity and wall temperature on the condensate film thickness and heat flux in the laminar and wavy regimes.

引用

页码：171 / 181

页数：11

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