Numerical simulation of the forest impact on aquifers

被引：0
|
作者：
Leontiev, A [1 ]
Huacasi, W
Herskovits, J
Soares, CMM
机构：
[1] Univ Fed Rio de Janeiro, Inst Matemat, BR-21945970 Rio De Janeiro, Brazil
[2] Univ Estadual N Fluminense, Dept Matemat, BR-28015620 Campos Dos Goytacazes, RJ, Brazil
[3] Univ Fed Rio de Janeiro, COPPE, Programa Engn Mecan, BR-21945970 Rio De Janeiro, Brazil
[4] Inst Super Tecn, Inst Engn Mecan, P-1049001 Lisbon, Portugal
来源：
COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING | 2004年 / 20卷 / 08期
关键词：
porous media; unconfined steady flow; suction flux; shape optimization; boundary elements method; mathematical programming;
D O I：
10.1002/cnm.692
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Here we propose a numerical method for the computer simulation of forest impact on aquifers. With this phenomenon we understand changes in the level of groundwater table beneath the areas recovered by trees. The mathematical model of the forest impact includes a boundary value problem with free and contact boundary conditions. Considering this free-contact boundary problem as a shape optimization problem we perform boundary elements discretization. Assuming the state and free boundary variables as independents, we treat the discretized problem as a non-linear mathematical program and apply interior point algorithm to solve it. Numerical results for an illustrative 2D test problem are discussed. Copyright (C) 2004 John Wiley Sons, Ltd.
引用
收藏
页码：585 / 594
页数：10
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