土壤覆盖层氡运迁模拟

Radon transported soil cover relocation simulation

文章分析了氡在土壤覆盖层中的迁移机理,以扩散作用和对流作用为基础,建立了稳定条件下氡在土壤层中运移的物理模型和数学模型,推导出氡在土壤层中的二维运迁方程,利用有限差分法对其求解,得出土壤层中氡浓度的分布数值解,进而对土壤层中氡浓度分步进行模拟。

This paper analyzes radon in the soil cover in the migration mechanism to diffusion and convection based on the establishment of a stable condition in the transport of radon in the soil layer of physical and mathematical models derived radon in the soil layer 2maintenance and operation transfer equation, finite difference method for solving, draw soil layer numerical solution of the distribution of radon concentration, and thus the concentration of radon in the soil layer step-wise simulation.