摘要
选择单组件瞬间全堵事故作为分析对象,并选取法国SCARABEE系列实验中的BE+1实验进行模型验证,事故模拟中的钠沸腾模型运用两流体六方程模型,子通道的径向和轴向网格均采用交错网格法进行网格划分,模型求解中针对子通道横向速度处理不足的缺点,根据拉梅算子展开原理提出改进方案,并通过对BE+1实验的模拟,验证模型改进的合理性。
To carry out the accident analysis of Chinese Experimental Fast Reactor, total instantaneous blockage of single subassembly （in short as TIB） is selected as analyzing object. Meanwhile BE＋ 1 experiment of SCARABEE series experiments is selected as validation experiment. During TIB simulation, two-fluid six-equation model is used in sodium boiling period, and the subassembly channel is discretized by intercrossing discretion method radially and axially. In the course of model solution, a optimizing method is put forward aiming at solving some drawback of sub-channel model, which is on the basis of Lame computation factor, and the result is validated on BE＋ 1 experiment, which show a reasonable outcome.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2014年第2期21-26,共6页
Nuclear Power Engineering
关键词
钠沸腾
子通道
快堆
Sodium Boiling, Sub-channel, Fast Reactor
