Research of Two-Group Interfacial Area Transport Model and Validation Method in Rectangular Channel

被引：0
|
作者：
Yu, Yang [1 ]
Song, Xiaoming [1 ]
Liu, Dong [1 ]
Guo, Fengchen [1 ]
Deng, Zhiyong [1 ]
Lu, Wei [1 ]
Huang, Qingyu [1 ]
机构：
[1] Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu,610213, China
来源：
Hedongli Gongcheng/Nuclear Power Engineering | 2021年 / 42卷
关键词：
Boltzmann equation - Nuclear reactors - Two phase flow - Nuclear fuels - Transport properties;
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摘要：
In the present nuclear reactor system analysis codes, the interfacial area concentration is calculated by the conventional flow regime dependent correlations. To eliminate potential artificial bifurcations or numerical oscillations stemming from the use of conventional static correlations, the interfacial area transport equation (IATE) is proposed to solve the interfacial area concentration in the two-fluid model. In the paper, the two-group IATE is established based on Boltzmann transport equation and the bubble coalescence and disintegration mechanisms are analytically modeled to provide mechanistic constitutive relations. To demonstrate the feasibility of the present approach, the two-group IATE is evaluated in one-dimensional, steady-state form applicable to adiabatic two-phase flow. Based on Data sets under cap-turbulent flow regime obtained from the study of Sun, agreement between the data sets and the model predictions is reasonably good. Copyright ©2021 Nuclear Power Engineering. All rights reserved.
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页码：113 / 120
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