FLOW THROUGH POROUS-MEDIA - A PROCEDURE FOR LOCATING THE FREE-SURFACE

被引：102
|
作者：
LACY, SJ
PREVOST, JH
机构：
[1] Princeton Univ, Princeton, NJ, USA, Princeton Univ, Princeton, NJ, USA
来源：
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS | 1987年 / 11卷 / 06期
关键词：
FLUID MECHANICS - MATHEMATICAL TECHNIQUES - Finite Element Method - PRESSURE EFFECTS - SOILS - Microstructure;
D O I：
10.1002/nag.1610110605
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
A finite element procedure is developed to accurately locate the free surface of unconfined seepage flow through porous media. The free surface is taken as the boundary between wet and dry soils, with flow in the saturated region characterized by Darcy's law. The method involves equations and meshing which are fully consistent with a general formulation for geotechnical engineering problems involving simultaneous solution of pore fluid pressures and soil skeleton displacements. Accuracy and versatility of the proposed procedure are demonstrated by solving various unconfined seepage flow problems through earth structures. Free surfaces and flownets are presented for the calculated flow fields.
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页码：585 / 601
页数：17
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