某内陆厂址污染物扩散的仿真验证与不同风向的辐射影响分析

doi:10.27045/j.1000-8187.202603003

摘要/Abstract

摘要： 采用CFD数值模拟方法评估代表性内陆厂址放射性污染物扩散的辐射影响,利用风洞实验验证数值模拟结果并结合厂址气象站观测结果,开展重点风向下的辐射影响评估。结果显示:厂区不同风向下的辐射剂量水平存在显著差异,如NE和N风向,烟囱出口下风向460 m和650 m处人员辐射剂量最大,E风向下厂区人员的辐射水平最低。本研究可为厂区辐射防护优化、人员安全及环境风险评估提供依据。

关键词: 放射性污染物, CFD模拟, 风洞实验, 内陆厂址, 辐射剂量

Abstract: The radiation impact of radioactive pollutant dispersion at a representative inland site was evaluated using the CFD numerical simulation method. First, wind tunnel experiments were employed for validation, confirming that CFD simulations can accurately reflect the pollutant distribution characteristics at the site. On this basis, combined with observations from the on-site meteorological station, radiation impact assessments under key wind directions were carried out, and the corresponding radiation dose levels were analyzed. The results show that significant differences exist in radiation dose levels within the plant area under different wind directions. For instance, under NE and N wind directions, the maximum external effective radiation dose to personnel occurs at 460 and 650 m downwind of the stack outlet, whereas the E wind direction corresponds to the lowest radiation level for on-site personnel. It is recommended that additional radiation monitoring facilities be installed in high-dose areas to monitor pollutant concentration and dose variations in real time, and that personnel residence time be controlled to reduce the risk of external exposure. This study can provide a scientific basis for the optimization of radiation protection, personnel safety, and environmental risk assessment at the plant.

Key words: radioactive pollutants, CFD simulation, wind tunnel experiment, inland site, radiation dose

中图分类号:

X169

李煜, 张俊芳, 李云鹏, 吕明华, 张芳, 陈龙泉, 李若洁, 李鸣野. 某内陆厂址污染物扩散的仿真验证与不同风向的辐射影响分析[J]. 辐射防护, 2026, 46(3): 206-214.

LI Yu, ZHANG Junfang, LI Yunpeng, LYU Minghua, ZHANG Fang, CHEN Longquan, LI Ruojie, LI Mingye. Simulation validation of pollutant dispersion and radiation impact analysis under different wind directions at an inland plant site[J]. RADIATION PROTECTION, 2026, 46(3): 206-214.

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