A mixed solution for two-dimensional unsteady flow in fractured porous media

被引：0
|
作者：
Fidelibus, C
Barla, G
Cravero, M
机构：
[1] POLITECN TORINO, DEPT STRUCT ENGN, I-10129 TURIN, ITALY
[2] POLITECN BARI, CNR, CTR STUDIO RISORSE IDRICHE & SALVAGUARDIA TERR, I-70125 BARI, ITALY
[3] POLITECN TORINO, CNR, CTR STUDI FIS ROCCE & GEOTECNOL, I-10129 TURIN, ITALY
来源：
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS | 1997年 / 21卷 / 09期
关键词：
unsteady flow; fractured porous media; boundary elements; finite elements; hybrid code; validation of numerical solution;
D O I：
10.1002/(SICI)1096-9853(199709)21:9<619::AID-NAG893>3.0.CO;2-V
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
A mixed finite element-boundary element solution for the analysis of two-dimensional flow in porous media composed of rock blocks and discrete fractures is described. The rock blocks are modelled implicitly by using boundary elements whereas finite elements are adopted to model the discrete fractures. The computational procedure has been implemented in a hybrid code which has been validated first by comparing the numerical results with the closed-form solution for flow in a porous aquifer intercepted by a vertical fracture only. Then, a more complex problem has been solved where a pervious, homogeneous and isotropic matrix containing a net of fractures is considered. The results obtained are shown to describe satisfactorily the main features of the flow problem under study. (C) 1997 by John Wiley & Sons, Ltd.
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页码：619 / 633
页数：15
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