Abstract
This paper addresses some of the important numerical issues by looking at the model single-equation representation of unsaturated flow, the Richards equation. Numerical methods are presented that produce superior results over a wide range of soil conditions. These techniques are used to demonstrate what is called the hierarchical philosophy of modeling flow and transport in porous media. An example of infiltration into an initially very dry soil, followed by redistribution, is used to demonstrate this philosophy. Extension of these concepts to the fully multiphase case is also discussed.
Original language | English (US) |
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Title of host publication | Computational Methods in Subsurface Hydrology |
Editors | G. Gambolati, A. Rinaldo, C.A. Brebbia, W.G. Gray, G.F. Pinder |
Publisher | Publ by Springer-Verlag Berlin |
Pages | 145-150 |
Number of pages | 6 |
ISBN (Print) | 038752701X |
State | Published - Dec 1 1990 |
Event | Proceedings of the 8th International Conference on Computational Methods in Water Resources - Venice, Italy Duration: Jun 11 1990 → Jun 15 1990 |
Other
Other | Proceedings of the 8th International Conference on Computational Methods in Water Resources |
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City | Venice, Italy |
Period | 6/11/90 → 6/15/90 |
All Science Journal Classification (ASJC) codes
- Engineering(all)