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49-2泳池堆是一个轻水慢化、冷却的研究性反应堆。其在役运行期间,曾进行了一些有计划的改进与改造。运行期间,游泳池底会吸附并逐渐汇聚若干异物杂质,泳池内部底部水流尽管缓慢,但池水流动情形会对池底异物的分布带来一定的影响。本文利用成熟的CFD软件对49-2堆进行三维流场数值模拟,来分析水池内部尤其是池底流动状况,便于较清楚地了解池底杂物的分布。
The 49-2 Pool Stack is a light water moderated, cooled research reactor. During its operation in service, some planned improvements and improvements have been made. During operation, the bottom of the swimming pool will adsorb and gradually gather a number of foreign matter impurities, and the water flow at the bottom of the swimming pool, though slow, may have an impact on the distribution of foreign bodies in the bottom of the pool. In this paper, we use the mature CFD software to simulate the flow field of 49-2 reactor in three-dimensional flow field to analyze the flow conditions in the pool, especially the bottom of the pool, so as to make it easier to understand the distribution of debris in the pool.