液态金属钠在圆管内传热特性数值模拟研究  

Numerical Simulation of Heat Transfer Characteristic of Liquid Sodium in Circular Tube

作　　者：李淞[1] 杨红义[1] 薛秀丽[1] 周志伟[1] 冯预恒[1] LI Song;YANG Hongyi;XUE Xiuli;ZHOU Zhiwei;FENG Yuheng(China Institute of Atomic Energy,P.O.Box 275-95,Beijing 102413,China)

机构地区：[1]中国原子能科学研究院反应堆工程技术研究部,北京102413

出　　处：《原子能科学技术》2019年第5期826-829,共4页Atomic Energy Science and Technology

摘　　要：为研究液态金属钠在不锈钢材料表面流动时的湍流传热特性,在已有实验研究的基础上,提出了k-ε模型下的湍流普朗特数Pr_t模型,并使用Fluent程序对圆管内的液态金属钠在不锈钢材料表面流动时的传热特性进行了计算。理论设计值与已有实验结果进行对比,二者符合较好。根据本文提出的Pr_t模型,可较为精确地计算液态金属钠在不锈钢材料表面流动时的传热特性。In order to study the turbulent heat transfer characteristics of liquid sodium on the surface of stainless steel material,based on the existing experimental research,the turbulent Prandtl number Pr t model under the k-ε model was proposed.The heat transfer characteristics of liquid sodium on the surface of the stainless steel material were calculated by using Fluent code.Compared with the existing experimental results,the theoretical design values are in good agreement.According to the currently proposed Pr t model,the heat transfer characteristics of liquid sodium flow on the surface of stainless steel material can be calculated more accurately.

关 键 词：液态金属钠 湍流普朗特数 湍流传热 

分 类 号：TL352.1[核科学技术—核技术及应用]