原子能科学技术2012，Vol.46Issue(3)：305-309,5.
方腔内液态金属钠自然对流换热特性数值分析
Numerical Analysis on Characteristics of Liquid Sodium Natural Convection in Square Cavity
摘要
Abstract
The numerical simulation was performed on liquid sodium laminar natural convection in square cavity. The distribution characteristics of heat transfer coefficient were obtained, and the effect was emphasized on the analysis of the impact of Rayleigh number upon the natural convective heat transfer process in a square cavity under different thermal boundary conditions. The results show that the liquid sodium natural heat transfer process is greatly influenced by the Rayleigh number when Rayleigh number is large enough. While when Rayleigh number is smaller than, say 103, the distributions of natural convective heat transfer coefficients on both the side walls and the bottom wall of the square cavity are almost the same as those of conductive heat transferprocess, respectively. This means that the mechanisms of heat transfer process mainlydepend on heat conduction under cases with lower Rayleigh number.关键词
液态金属钠/方腔/自然对流换热/数值模拟Key words
liquid sodium/ square cavity/ natural heat transfer/ numerical simulation分类
能源科技引用本文复制引用
曾和义,董化平,郭赟..方腔内液态金属钠自然对流换热特性数值分析[J].原子能科学技术,2012,46(3):305-309,5.基金项目
哈尔滨工程大学基础研究资助项目(HEUFT07092) （HEUFT07092）
国家自然科学基金资助项目(10805011) （10805011）
黑龙江省留学归国科学基金资助项目(LC201033) （LC201033）
