Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

An integrated finite difference method for analyzing fluid flow in porous media

An integrated finite difference method for analyzing fluid flow in porous media The theoretical basis for the integrated finite difference method (IFDM) is presented to describe a powerful numerical technique for solving problems of groundwater flow in porous media. The method combines the advantages of an integral formulation with the simplicity of finite difference gradients and is very convenient for handling multidimensional heterogeneous systems composed of isotropic materials. Three illustrative problems are solved to demonstrate that two‐ and three‐dimensional problems are handled with equal ease. Comparison of IFDM with the well‐known finite element method (FEM) indicates that both are conceptually similar and differ mainly in the procedure adopted for measuring spatial gradients. The IFDM includes a simple criterion for local stability and an efficient explicit‐implicit iterative scheme for marching in the time domain. If such a scheme can be incorporated in a new version of FEM, it should be possible to develop an improved numerical technique that combines the inherent advantages of both methods. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Water Resources Research Wiley

An integrated finite difference method for analyzing fluid flow in porous media

Download PDF
8 pages

Loading next page...
 
/lp/wiley/an-integrated-finite-difference-method-for-analyzing-fluid-flow-in-F0Ano4sDXF

References (33)

Publisher
Wiley
Copyright
Copyright © 1976 by the American Geophysical Union.
ISSN
0043-1397
eISSN
1944-7973
DOI
10.1029/WR012i001p00057
Publisher site
See Article on Publisher Site

Abstract

The theoretical basis for the integrated finite difference method (IFDM) is presented to describe a powerful numerical technique for solving problems of groundwater flow in porous media. The method combines the advantages of an integral formulation with the simplicity of finite difference gradients and is very convenient for handling multidimensional heterogeneous systems composed of isotropic materials. Three illustrative problems are solved to demonstrate that two‐ and three‐dimensional problems are handled with equal ease. Comparison of IFDM with the well‐known finite element method (FEM) indicates that both are conceptually similar and differ mainly in the procedure adopted for measuring spatial gradients. The IFDM includes a simple criterion for local stability and an efficient explicit‐implicit iterative scheme for marching in the time domain. If such a scheme can be incorporated in a new version of FEM, it should be possible to develop an improved numerical technique that combines the inherent advantages of both methods.

Journal

Water Resources Research – Wiley

Published: Feb 1, 1976

There are no references for this article.