原子能科学技术2016，Vol.50Issue(3)：424-429,6.DOI:10.7538/yzk.2016.50.03.0424
熔融池氧化物层自然对流的数值模拟
Numerical Simulation of Natural Convection in Oxide Layer of Molten Pool
摘要
Abstract
The two‐dimensional numerical simulation of turbulent natural convection in a model of BALI test section with internal heat source was presented .The simulation was carried out at Rayleigh number of 1012‐1015 .The turbulent flow of the fluid was cap‐tured with a large‐eddy simulation (LES) model .Through area‐weighted integration of local heat flux on lower boundary ,the three‐dimensional heat flow of lower boundary was calculated .The results show that the Rayleigh number has a significant effect on flow field ,temperature field and distribution of local heat flux on lower boundary .The calculated Ra‐Nu relation on both upper and lower boundaries is in good agreement with experimental results .The heat flux distribution on lower boundary caused by different physical mechanisms has also been analyzed .关键词
严重事故/熔融物堆内滞留/氧化物层/自然对流/大涡模拟Key words
severe accident/in-vessel retention/oxide layer/natural convection/large-eddy simulation分类
能源科技引用本文复制引用
汲水,胡腾,史韵白,常华健..熔融池氧化物层自然对流的数值模拟[J].原子能科学技术,2016,50(3):424-429,6.基金项目
国家科技重大专项资助项目 （）
