A numerical simulation of pool boiling using CAS model

被引：10
|
作者：
Yang, J [1 ]
Guo, LJ [1 ]
Zhang, XM [1 ]
机构：
[1] Xian Jiaotong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2003年 / 46卷 / 25期
关键词：
numerical simulation; pool boiling; SIMPLER; cell automata; CAS model;
D O I：
10.1016/S0017-9310(03)00353-3
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper presents a new numerical model, called the CAS model, for boiling heat transfer. The CAS model is based on the cellular automata (CA) technique that is integrated into the popular SIMPLER algorithm for CFD problems. In the model, the CA technique deals with the microscopic nonlinear dynamic interactions of bubbles while the traditional CFD algorithm is used to determine macroscopic system parameters such as pressure and temperature. The popular SIMPLER algorithm is employed for the CFD treatment. The model is then employed to simulate a pool boiling process. The computational results show that the CAS model can reproduce most of the basic features of boiling and capture the fundamental characteristics of boiling phenomena. The heat transfer coefficient predicted by the CAS model is in excellent agreement with the experimental data and existing empirical correlations. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4789 / 4797
页数：9
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