Numerical Simulation on Radon Retardation Behavior of Covering Floats in Radon-Containing Water

作     者：LIU Shu Yuan ZHANG Li YE Yong Jun DING Ku Ke LIU Shu Yuan;ZHANG Li;YE Yong Jun;DING Ku Ke

作者机构：National Institute for Radiological ProtectionChinese Center for Disease Control and PreventionBeijing 100088China Office for Public Health ManagementChinese Center for Disease Control and PreventionBeijing 102206China Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and HydrometallurgyUniversity of South ChinaHengyang 421001HunanChina 

出 版 物：《Biomedical and Environmental Sciences》 (生物医学与环境科学（英文版）)

年 卷 期：2024年第37卷第4期

页      面：406-417页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 1004[医学-公共卫生与预防医学(可授医学、理学学位)] 08[工学] 0815[工学-水利工程] 

基　　金：supported by a grant from the National Natural Science Foundation of China(Grant nos.31770907,31640022) the National Natural Science Foundation of China(Grant No.11575080) the Natural Science Foundation of Hunan Province,China(Grant No.2022JJ30482) 

主　　题：Radon-containing water Radon retardation rate CFD Coverage experiment Optimized design 

摘      要：Objective This study aimed to efficiently reduce the release of radon from water bodies to protect the *** Based on the sizes of the experimental setup and modular float,computational fluid dynamics(CFD)was used to assess the impact of the area coverage rate,immersion depth,diffusion coefficient,and radon transfer velocity at the gas–liquid interface on radon migration and exhalation of radon-containing *** on the numerical simulation results,an estimation model for the radon retardation rate was *** effectiveness of the CFD simulation was evaluated by comparing the experimental and simulated variation values of the radon retardation rate with the coverage area *** The effect of radon transfer velocity on radon retardation in water bodies was minor and insignificant according to the appropriate value;therefore,an estimation model of the radon retardation rate of the coverage of a radon-containing water body was constructed using the synergistic impacts of three factors:area coverage rate,immersion depth,and diffusion *** deviation between the experimental and simulated results was4.3%.Conclusion Based on the numerical simulation conditions,an estimation model of the radon retardation rate of covering floats in water bodies under the synergistic effect of multiple factors was obtained,which provides a reference for designing covering floats for radon retardation in radoncontaining water.