辐射防护2024，Vol.44Issue(4)：383-390,8.
冷却塔热羽对核电厂周围流动与扩散影响的数值模拟研究
Numerical simulation of the effect of cooling tower plume on the air flow and diffusion around a nuclear power plant
裴娟 1李若洁 2张俊芳 2赵丹 2王雪 1浦祥1
作者信息
- 1. 上海核工程研究设计院股份有限公司,上海 200030
- 2. 中国辐射防护研究院,太原 030006
- 折叠
摘要
Abstract
In this paper,a nuclear power plant is taken as the research object.The computational fluid dynamics(CFD)method is used to study the influence of natural ventilation cooling tower on the flow and pollutant diffusion around the nuclear power plant,and the results are compared with the wind tunnel experiment results to verify the validity of the model.The results show that on the leeward side of the cooling tower,the wind speed in the near wake region(including the re-circulation zone)decreases significantly,and the turbulence intensity increases significantly.When the cooling tower is located in the downwind direction of the stack,the plume emission has a great influence on the pollutant diffusion of the stack.The pollutant is naturally sucked through the cooling tower,and the secondary emission phenomenon occurs.When there is plume emission,the ground axis diffusion factor is less than that without thermal plume emission before 1 000 m.关键词
冷却塔/热羽/流场/浓度场/数值模拟Key words
cooling tower/plume/flow field/concentration field/numerical simulation分类
资源环境引用本文复制引用
裴娟,李若洁,张俊芳,赵丹,王雪,浦祥..冷却塔热羽对核电厂周围流动与扩散影响的数值模拟研究[J].辐射防护,2024,44(4):383-390,8.
