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<p>The radon released from the exposed uranium tailings pond beach has an undeniable impact on the surrounding environment. In order to reveal the rules of radon exhalation on the uranium tailings pond beach under the action of wind field, a radon migration model was established under the coupling conditions of atmosphere and uranium tailings pond, and the radon exhalation rate of the beach was determined using CFD (Computational fluid dynamics) under different wind speeds (<InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10967_2025_10076_Article_IEq1.gif" Format="GIF" Height="14" Rendition="HTML" Resolution="72" Type="Linedraw" Width="24" /> </InlineMediaObject> <EquationSource Format="TEX">\({v}_{{G}_{0}}\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi>v</mi> <msub> <mi>G</mi> <mn>0</mn> </msub> </msub> </math></EquationSource> </InlineEquation> = 0&#xa0;m/s, 0.4&#xa0;m/s, 2&#xa0;m/s, and 4&#xa0;m/s) and permeabilities (<i>K</i> = 1.0 × 10<sup>−11</sup>&#xa0;m<sup>2</sup>, 1.0 × 10<sup>−9</sup>&#xa0;m<sup>2</sup>, and 1.0 × 10<sup>−8</sup>&#xa0;m<sup>2</sup>). The results show that: (1) the radon exhalation rate on the beach is unevenly distributed under the effect of external wind field, its average value increases with the increase of wind speed and permeability, (2) the smaller the permeability, the less significant the effect of wind speed on the radon exhalation rate of the beach. This study provides a reference for estimating and evaluating the radon exhalation rate and total radon release amount of the beaches under external wind fields, as well as for suppressing radon release.</p>

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Numerical simulation on radon exhalation rules of the uranium tailings pond beach under the effect of external wind field

  • 期刊论文

  • 发表日期：

    2025年3月27日

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  • Yongjun Ye,
  • Liling Luo,
  • Mengyi Li,
  • Xuanli Yao

摘要

The radon released from the exposed uranium tailings pond beach has an undeniable impact on the surrounding environment. In order to reveal the rules of radon exhalation on the uranium tailings pond beach under the action of wind field, a radon migration model was established under the coupling conditions of atmosphere and uranium tailings pond, and the radon exhalation rate of the beach was determined using CFD (Computational fluid dynamics) under different wind speeds ( \({v}_{{G}_{0}}\) v G 0  = 0 m/s, 0.4 m/s, 2 m/s, and 4 m/s) and permeabilities (K = 1.0 × 10−11 m2, 1.0 × 10−9 m2, and 1.0 × 10−8 m2). The results show that: (1) the radon exhalation rate on the beach is unevenly distributed under the effect of external wind field, its average value increases with the increase of wind speed and permeability, (2) the smaller the permeability, the less significant the effect of wind speed on the radon exhalation rate of the beach. This study provides a reference for estimating and evaluating the radon exhalation rate and total radon release amount of the beaches under external wind fields, as well as for suppressing radon release.