Application of the conjugate-gradient method to ground-water models
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)
Citation Information
Publication Year | 1984 |
---|---|
Title | Application of the conjugate-gradient method to ground-water models |
DOI | 10.3133/wri834009 |
Authors | T.A. Manteuffel, D.B. Grove, Leonard F. Konikow |
Publication Type | Report |
Publication Subtype | USGS Numbered Series |
Series Title | Water-Resources Investigations Report |
Series Number | 83-4009 |
Index ID | wri834009 |
Record Source | USGS Publications Warehouse |