摘要
基于计算流体力学(CFD)对燃料组件上管座内冷却剂的流动进行数值研究,形成了上管座阻力特性数值模拟方法,结合整体水力学实验中上管座阻力系数实验结果,验证了计算方法的合理性。基于CFD对燃料组件上管座的阻力特性进行了分析和评价,说明了阻流塞是实验测量结果与参考数据存在差异的主要原因,并给出了上管座阻力系数的取值建议。
In this paper, numerical simulation study is conducted for the flow of coolant in the top nozzle of the fuel assembly based on CFD methodology and the general simulation settings have been proposed. Comparison between the results of measured coefficient in the experiment and CFD simulation validated the feasibility of this calculation method. Based on CFD simulation, the resistant characteristics of different components of the top nozzle had been evaluated. The analysis and evaluation showed thatt the main reason for the difference of the experiment data of the top nozzle with the reference data is the resistance coefficient value of the fuel assembly top nozzle. Recommended value is proposed.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2017年第S2期29-33,共5页
Nuclear Power Engineering
关键词
上管座
水力学
CFD
阻力系数
Top nozzle
Hydraulic
CFD
Resistance coefficient
