Application of the conjugate-gradient method to ground-water models

Water-Resources Investigations Report 83-4009
By: , and 



The conjugate-gradient method can solve efficiently and accurately finite-difference approximations to the ground-water flow equation. An aquifer-simulation model using the conjugate-gradient method was applied to a problem of ground-water flow in an alluvial aquifer at the Rocky Mountain Arsenal, Denver, Colorado. For this application, the accuracy and efficiency of the conjugate-gradient method compared favorably with other available methods for steady-state flow. However, its efficiency relative to other available methods depends on the nature of the specific problem. The main advantage of the conjugate-gradient method is that it does not require the use of iteration parameters, thereby eliminating this partly subjective procedure. (USGS)

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Application of the conjugate-gradient method to ground-water models
Series title Water-Resources Investigations Report
Series number 83-4009
DOI 10.3133/wri834009
Edition -
Year Published 1984
Language ENGLISH
Publisher U.S. Geological Survey,
Description iii, 24 p. :ill., maps ;28 cm.