不同湍流模型对铅-铋凝固模拟的影响研究  

Influence of Different Turbulence Models on Simulation of Lead-Bismuth Solidification

作　　者：曾陈 张蕊 刘茂龙 张伟豪 李俊龙[1] 刘利民 刘莉[1] 顾汉洋[1] Zeng Chen;Zhang Rui;Liu Maolong;Zhang Weihao;Li Junlong;Liu Limin;Liu Li;Gu Hanyang(Shanghai Jiao Tong University,Shanghai,200240,China;China Nuclear Power Technology Research Institute Co.Ltd.,Shenzhen,Guangdong,518000,China)

机构地区：[1]上海交通大学,上海200240 [2]中广核研究院有限公司,广东深圳518000

出　　处：《核动力工程》2023年第S01期40-45,共6页Nuclear Power Engineering

摘　　要：为了研究不同湍流模型及湍流普朗特数(Pr_(t))模型对模拟铅-铋凝固行为的影响,利用FLUENT对铅-铋管内流动凝固行为进行模拟研究。研究结果表明,尽管剪切应力传输(k-ω SST)模型、k-ε模型与雷诺应力(RSM)模型在模拟铅-铋传热时的差异可以忽略,但在相变过程中对温度场与压力场的模拟存在显著差异,应慎重选取湍流模型。另外对不同Pr_(t)模型对铅-铋的凝固行为模拟的研究表明,不同Pr_(t)模型对铅-铋的凝固行为模拟无明显差异。To study the influence of different turbulence models and turbulence Prandtl number(Pr_t) models on the simulation of lead-bismuth solidification behavior,this paper uses FLUENT to simulate the flow solidification behavior of lead-bismuth(Pb-Bi) inside a tube.The simulation results show that although the differences between the shear stress transfer(k-ω SST),k-ε and Reynolds stress(RSM) models in simulating Pb-Bi heat transfer can be ignored,there are significant differences in the simulation of the temperature and pressure fields during the phase change,thus the turbulence model should be carefully selected.In addition,the study on the simulation of Pb-Bi solidification using different Pr_(t) models shows no significant difference.

关 键 词：铅-铋快堆(LFR) 安全分析 冷却剂凝固 湍流模型 

分 类 号：TL334[核科学技术—核技术及应用]