CFD方法在棒束定位格架热工水力分析中的应用研究  

Research on Application of CFD Method in Thermal-Hydraulic Performance Analysis of Rod Bundle Grid

作　　者：陈畏葓[1] 张虹[1] 朱力[1] 熊万玉[1] 

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术国家级重点实验室,成都610041

出　　处：《核动力工程》2009年第S1期34-38,共5页Nuclear Power Engineering

摘　　要：利用UG、CFX程序和计算流体力学(CFD)方法对AFA-2G组件5×5棒束定位格架进行了几何建模和通道内单相水三维流场数值模拟,包括特定流速下流场的定性和定量分析、不同流速下的阻力特性分析等。将分析结果与相应试验结果进行了比较,结果表明:采用合理的结构简化、恰当的物理模型和数值求解算法,CFX程序能较好地模拟棒束定位格架通道内的单相水三维流场,其模拟结果与试验结果符合较好。UG code and Computational Fluid Dynamics method are used to generate the 5×5 rod bundle grid of AFA-2G geometry and simulate the single phase three flow field,including the qualitative and quantitative flow field analysis under specific velocity,and the resistance characteristics under different velocity.The computational results and experimental results are compared.The comparison shows that CFX code can simulate the three flow fields of single phase coolant in the rod bundle grid channel using reasonable geometry,appropriate physical model and arithmetic.The simulation results are well corresponding with the experiments.

关 键 词：CFD方法 棒束定位格架 热工水力 性能分析 应用研究 

分 类 号：TL333[核科学技术—核技术及应用]