CAJ | 학술논문

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（C FD ）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。
본문대구상불염냉각고온퇴퇴심열공류체현상진행료연구。채용계산류체동역학（C FD ）방법진행료삼유건모화계산，득도료연료원건구표면온도분포화퇴심냉각제속도장、온도장화압력적분포，험증료은태공황하불염대퇴심적냉각능력，분석료불염적특수열공류체역학성질대퇴심안전적영향，결과가용우구상불염냉각고온퇴적초보설계。
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 .