■这项研究旨在有效地减少水体中of的释放,以保护环境。
■根据实验装置和模块化浮子的尺寸,计算流体力学(CFD)用于评估区域覆盖率的影响,浸没深度,扩散系数,气-液界面处的氡传递速度对氡运移和含氡水呼气的影响。根据数值模拟结果,建立了氡延迟率的估算模型。通过将氡延迟率的实验和模拟变化值与覆盖面积率进行比较,评估了CFD模拟的有效性。
■根据适当的值,氡转移速度对水体中氡延迟的影响很小,并且微不足道;因此,利用面积覆盖率、浸没深度,和扩散系数。实验结果与模拟结果的偏差<4.3%。
■基于数值模拟条件,得到了多因素协同作用下水体中覆盖浮子氡阻滞率的估算模型,这为设计含氡水中氡延迟覆盖浮子提供了参考。
UNASSIGNED: This study aimed to efficiently reduce the release of radon from water bodies to protect the environment.
UNASSIGNED: 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 water. Based on the numerical simulation results, an estimation model for the radon retardation rate was constructed. The effectiveness of the
CFD simulation was evaluated by comparing the experimental and simulated variation values of the radon retardation rate with the coverage area rates.
UNASSIGNED: 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 coefficient. The deviation between the experimental and simulated results was < 4.3%.
UNASSIGNED: 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 radon-containing water.