液态金属钠在圆管内传热特性数值模拟研究
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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.
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.
引文
[1] 杨福昌.平衡态氧化铀堆芯稳态热工设计[R].北京:中国原子能科学研究院,2002.
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[12] LYON R N.Liquid metal heat-transfer coefficients[J].Chem Eng Prog,1951,47:75-79.
[13] 赵洪章,岳春国,李进贤,等.基于Fluent的导弹气动特性计算[J].弹箭与制导学报,2007,27(2):203-205.ZHAO Hongzhang,YUE Chunguo,LI Jinxian,et al.A missile’s aerodynamic characteristic calculation based on Fluent[J].Journal of Projectiles Rockets Missiles and Guidance,2007,27(2):203-205(in Chinese).
[14] 居怀明,徐元辉.载热质热物性计算程序及数据手册[M].北京:原子能出版社,1990.
[15] 吕逸君,彭勇升.大涡模拟液态金属在环形管道内的湍流传热特性[J].中国科学技术大学学报,2015,45(11):917-922.LYU Yijun,PENG Yongsheng.Large eddy simulation for the turbulent heat transfer of liquid metal in an annulus[J].Journal of University of Science and Technology of China,2015,45(11):917-922(in Chinese).
[16] 张贵勤,单建强.高温低Pe数与低温高Pe数液钠在环管中的换热研究[J].西安交通大学学报,1995,29(6):76-81.ZHANG Guiqin,SHAN Jianqiang.Study of heat transfer to liquid sodium with high temperature and low Pe number and with low temperature and high Pe number in an annulus[J].Journal of Xi’an Jiaotong University,1995,29(6):76-81(in Chinese).
[2] LYON R N.Forced convection heat transfer theory and experiments with liquid metals,ORNL 361[R].USA:Oak Ridge National Laboratory,1949.
[3] SEBAN R A.Heat transfer to a fluid flowing turbulently between parallel walls with asymmetric wall temperatures[J].Trans ASME,1950,72:789-795.
[4] WERNER R C,KING E C,TIDBALL R A.Heat transfer with sodium-potassium liquid alloys[C]//Meeting of Am.Inst.Chem.Eng.Pittsburgh:[s.n.],1949.
[5] LUBARSKY B,KAUFMAN S J.Review of experimental investigations of liquid metal heat transfer,NACA TN 3336[R].[S.l.]:[s.n.],1955.
[6] SUBBOTIN V I,PAPOVYANTS A K,KIRILLOV P L,et al.A study of heat transfer to molten sodium in tubes[J].At Energ,1962,13:380-382.
[7] 张贵勤.液态金属钠在圆管和环管内流动时放热问题的数值解[J].核动力工程,1992,13(1):48-56.ZHANG Guiqin.Numerical solution of heat transfer to liquid sodium flowing in a tube and an annulus[J].Nuclear Power Engineering,1992,13(1):48-56(in Chinese).
[8] 许咏丽.铅及铅铋共晶合金工艺手册[M].北京:原子能出版社,2013.
[9] KAYS W M.Turbulent Prandtl number where are we?[J].Journal of Heat Transfer,1994,116(2):284-295.
[10] CHEN Fei,HUAI Xiulan.Investigation on the applicability of turbulent-Prandtl-number models for liquid lead-bismuth eutectic[J].Nuclear Engineering and Design,2013,257:128-133.
[11] WANG Shibao,ZHANG Dalin.Validation of a methodology for thermal stratification analysis in sodium-cooled fast reactors[J].Int J Energy Res,2018,https://doi.org/10.1002/er.4108.
[12] LYON R N.Liquid metal heat-transfer coefficients[J].Chem Eng Prog,1951,47:75-79.
[13] 赵洪章,岳春国,李进贤,等.基于Fluent的导弹气动特性计算[J].弹箭与制导学报,2007,27(2):203-205.ZHAO Hongzhang,YUE Chunguo,LI Jinxian,et al.A missile’s aerodynamic characteristic calculation based on Fluent[J].Journal of Projectiles Rockets Missiles and Guidance,2007,27(2):203-205(in Chinese).
[14] 居怀明,徐元辉.载热质热物性计算程序及数据手册[M].北京:原子能出版社,1990.
[15] 吕逸君,彭勇升.大涡模拟液态金属在环形管道内的湍流传热特性[J].中国科学技术大学学报,2015,45(11):917-922.LYU Yijun,PENG Yongsheng.Large eddy simulation for the turbulent heat transfer of liquid metal in an annulus[J].Journal of University of Science and Technology of China,2015,45(11):917-922(in Chinese).
[16] 张贵勤,单建强.高温低Pe数与低温高Pe数液钠在环管中的换热研究[J].西安交通大学学报,1995,29(6):76-81.ZHANG Guiqin,SHAN Jianqiang.Study of heat transfer to liquid sodium with high temperature and low Pe number and with low temperature and high Pe number in an annulus[J].Journal of Xi’an Jiaotong University,1995,29(6):76-81(in Chinese).