| Abstract: | Various schemes are investigated for finite-element modeling of two-dimensional surface-water flows. The first schemes investigated combine finite-element spatial discretization with split-step time stepping schemes that have been found useful in finite-difference computations. Because of the large number of numerical integrations performed in space and the large sparse matrices solved, these finite-element schemes were found to be economically uncompetitive with finite-difference schemes. A very promising leapfrog scheme is proposed which, when combined with a novel very fast spatial integration procedure, eliminates the need to solve any matrices at all. Additional problems attacked included proper propagation of waves and proper specification of the normal flow-boundary condition. This report indicates work in progress and does not come to a definitive conclusion as to the best approach for finite-element modeling of surface-water problems. The results presented represent findings obtained between September 1973 and July 1976. (Woodard-USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 9220 |
| Citation Author: | Gray, William G. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | iii, 78 p. :ill. ;30 cm. -- |
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| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 78-479 |
| Citation Search Results Text: | A progress report on estuary modeling by the finite-element method; 1978; OFR; 78-479; Gray, William G. |
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| Citation Year: | 1978 |
| Type: | citation/reference |
| Text: | A progress report on estuary modeling by the finite-element method; 1978; OFR; 78-479; Gray, William G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
