求解两相蒸发和冷凝问题的气液相变模型

孙东亮 1; 徐进良 2; 王丽 2

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求解两相蒸发和冷凝问题的气液相变模型

更新时间：2025-07-09

- 求解两相蒸发和冷凝问题的气液相变模型
- A Vapor-Liquid Phase Change Model for Two-Phase Boiling and Condensation
- 西安交通大学学报 2012年46卷第7期页码：7-11
- 作者机构：
  
  华北电力大学新能源电力系统国家重点实验室,北京,102206
- 作者简介：
- 基金信息：
  
  : 2011-11-17. 作者简介: 孙东亮(1977-),男,博士,副教授;徐进良(通信作者),男,教授. 基金项目: 国家自然科学基金青年基金资助项目(51106049);国家重点基础研究发展计划资助项目(2011CB710703);北京市自然科学基金资助项目(3112022);河北省自然科学基金资助项目(E2011502057).
- DOI：
  中图分类号： TK124
- 网络首发：2012-07-10，
  
  纸质出版：2012
- 稿件说明：
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孙东亮 1, 徐进良 2, 王丽 2. 求解两相蒸发和冷凝问题的气液相变模型[J]. 西安交通大学学报, 2012,46(7):7-11.

A Vapor-Liquid Phase Change Model for Two-Phase Boiling and Condensation[J]. 2012, 46(7): 7-11.
孙东亮 1, 徐进良 2, 王丽 2. 求解两相蒸发和冷凝问题的气液相变模型[J]. 西安交通大学学报, 2012,46(7):7-11. DOI：

A Vapor-Liquid Phase Change Model for Two-Phase Boiling and Condensation[J]. 2012, 46(7): 7-11. DOI：

摘要

为了更精确简单地求解两相流中的蒸发和冷凝问题

基于FLUENT中的流体体积(VOF)方法提出了一种气液相变模型

该模型适应于两相中一相为非饱和相

即处于过热或过冷状态

另一相为饱和相

即处于饱和状态.该气液相变模型中:非饱和相导热系数和比热容为真实的物性参数; 假设饱和相导热系数等于0

饱和相比热容等于非饱和相比热容; 界面处相变率仅由非饱和相决定.最后

通过一维Stefan问题相界面位置的分析解和二维膜态沸腾气相体积比的精确解

验证了该相变模型的精确性和可行性.文中工作为该相变模型的推广应用奠定了基础.

Abstract

A vapor-liquid phase change model on the basis of the volume of fluid(VOF)method in FLUENT was proposed to solve the two-phase boiling or condensation problems. This model is suitable for the case where one is unsaturated phase and the other is saturated phase. In the model proposed here

the unsaturated-phase thermal conductivity and specific heat are actual physical parameters; the saturated-phase thermal conductivity is assumed to be zero and the saturated-phase specific heat is assumed to equal the unsaturated-phase specific heat; the interfacial mass-transfer rate is determined only by the unsaturated phase. In addition

our phase change model was verified by the analytical solutions of the one-dimensional Stefan problem and the accurate results of the two-dimensional boiling problem. The work will lay a foundation for the application of this model.

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references

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