Research on a Four-Equation Model Based on OpenFOAM

被引：0
|
作者：
Su X. [1 ,2 ]
Gu L. [1 ,2 ,3 ]
Peng T. [1 ,2 ,4 ]
Liu J. [1 ,2 ]
Li X. [1 ,2 ]
Wang G. [1 ,2 ]
机构：
[1] Institute of Modern Physics, Chinese Academy of Science, Lanzhou
[2] School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing
[3] School of Nuclear Science and Technology, Lanzhou University, Lanzhou
[4] Advanced Energy Science and Technology Guangdong Laboratory, Huizhou
来源：
Hedongli Gongcheng/Nuclear Power Engineering | 2021年 / 42卷
关键词：
Four-equation; Liquid Lead Bismuth(LBE); OpenFOAM; Turbulent heat transfer;
D O I：
10.13832/j.jnpe.2021.S1.0026
中图分类号：
学科分类号：
摘要：
To establish an auxiliary method for turbulence heat transfer of liquid lead bismuth (LBE), based on Reynolds-Average Navier-Stokes equations and open-source computational fluid dynamics program OpenFOAM, a 4-equation solver was developed. The solver is combination of a first-order 2-equation turbulence model to close the momentum equation and of a first-order 2-equation heat transfer model to close the energy equation. The distributions of velocity, temperature, root mean square of temperature fluctuation, Reynolds stress and heat flux were obtained by numerical calculation in plane and tube for liquid lead bismuth. The results show that the predicted time-average statistics and Nusselt number are in good agreement with the direct numerical simulation data and experimental correlations, respectively. And mean turbulent Prandtl number decreases with the increase of Reynolds number. Copyright ©2021 Nuclear Power Engineering. All rights reserved.
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页码：26 / 32
页数：6
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