DIFFUSION-MODELS FOR FRACTURED MEDIA

被引:58
作者
HORNUNG, U [1 ]
SHOWALTER, RE [1 ]
机构
[1] UNIV TEXAS,DEPT MATH,AUSTIN,TX 78712
基金
美国国家科学基金会;
关键词
21;
D O I
10.1016/0022-247X(90)90385-S
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Two models for diffusion in fractured media are described; the compartment model as an example of a double-porosity system, and the micro-structure model as the limit by homogenization of local flux-coupled classical diffusion models which depend on the geometry. These two models are shown to be examples of a single evolution equation for which the appropriate initial-boundary-value problems are well-posed. This gives a unified theoretical basis for these two (as well as classical diffusion) models in which they can be compared and studied. © 1990.
引用
收藏
页码:69 / 80
页数:12
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