Numerical study of condensing bubble in subcooled boiling flow using volume of fluid model

被引：92

作者：

Jeon, Seong-Su ^{[1
]}

Kim, Seong-Jin ^{[2
]}

Park, Goon-Cherl ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Nucl Engn, Seoul 151744, South Korea

[2] Korea Atom Energy Res Inst, Taejon 305600, South Korea

来源：

CHEMICAL ENGINEERING SCIENCE | 2011年 / 66卷 / 23期

关键词：

Bubble behavior; Condensation; Heat and mass transfer; Two-phase flow; Numerical analysis; VOF model; GAS-BUBBLES; VOF; SIMULATION;

D O I：

10.1016/j.ces.2011.08.011

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this numerical study, the behavior of condensing bubble was investigated using the volume of fluid (VOF) model in the FLUENT code. In order to simulate the condensing bubble with the FLUENT code, the bubble condensation was modeled using the user-defined function (UDF). For the validation of the UDF of bubble condensation, the results of CFD simulation were compared with the results of a bubble condensation experiment performed in Seoul National University (SNU). Simulation results showed good agreements with the experimental data. Moreover, the fundamental behavior of the condensing bubble was investigated in various conditions. The effects of condensation on bubble behavior were analyzed by comparing the behavior of condensing bubbles with that of adiabatic bubbles. It was found that the behavior of the condensing bubble was different from that of the adiabatic bubble in many respects including the bubble shape, velocity, rise distance and moving trajectory. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：5899 / 5909

页数：11

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