球床氟盐冷却高温堆堆芯热工水力模拟  

Thermal-hydraulic Simulation for Pebble Bed Fluoride Salt-cooled High-temperature Reactor Core

作　　者：王桂敏[1] 李炜炜[1] 李宁[2] 韩善彪[1] 

机构地区：[1]环境保护部核与辐射安全中心,北京100082 [2]中国原子能科学研究院,北京102413

出　　处：《原子能科学技术》2015年第4期629-633,共5页Atomic Energy Science and Technology

摘　　要：本文对球床氟盐冷却高温堆堆芯热工流体现象进行了研究。采用计算流体动力学(CFD)方法进行了三维建模和计算,得到了燃料元件球表面温度分布和堆芯冷却剂速度场、温度场和压力的分布,验证了稳态工况下氟盐对堆芯的冷却能力,分析了氟盐的特殊热工流体力学性质对堆芯安全的影响,结果可用于球床氟盐冷却高温堆的初步设计。The thermal fluid phenomena of the core of the pebble bed fluoride salt‐cooled high‐temperature reactor were researched .By using the CFD method for 3D modeling and computing ,the pebble surface temperature distribution of the fuel ,and the velocity field ,the temperature field and the pressure distribution of the coolant of the reactor core were gotten .The capacity of the fluoride salt to cool reactor core in the steady condition was verified ,and the influence of the special thermo‐fluid mechanics property for the fluoride salt on core safety was analyzed .The results can be used in the primary design for fluoride salt‐cooled high‐temperature reactor .

关 键 词：球床 熔盐堆 计算流体动力学 

分 类 号：TL331[核科学技术—核技术及应用]