Numerical solution of the diffusion equation describing the flow of radon through concrete

被引：17
|
作者：
Savovic, Svetislav [1 ]
Djordjevich, Alexandar [1 ]
机构：
[1] City Univ Hong Kong, Kowloon, Hong Kong, Peoples R China
来源：
APPLIED RADIATION AND ISOTOPES | 2008年 / 66卷 / 04期
关键词：
radon; diffusion equation; finite difference method; concrete;
D O I：
10.1016/j.apradiso.2007.08.018
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The process of radon diffusion through slabs of concrete with different thicknesses is investigated. The solution of the relevant diffusion equation is obtained by the explicit finite difference method. It is compared to experimental measurements and to numerical results obtained by the finite element method reported earlier. A need is demonstrated to account for the elevated radon concentration in air immediately behind the concrete slabs as it affects the diffusion through the slabs. The method presented for the calculation of radon diffusion through concrete walls allows estimation of the indoor radon concentration. (c) 2007 Elsevier Ltd. All rights reserved.
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页码：552 / 555
页数：4
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