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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 3: Water and Carbon: Climate Change Impact : Handling of the 3d behaviour of the unsaturated layer using a vertical 1d model for the richards equ...
Handling of the 3d behaviour of the unsaturated layer using a vertical 1d model for the richards equation along with diffusive horizontal fluxes
Author : R. Paulus1, P. Archambeau1, S. Erpicum1, B.J. Dewals1 and M. Pirotton1
The physics of groundwater flows in both unsaturated and saturated media is commonly modelled with the Richards equation. In Hydrology, a 3D solution could be required in order to give detailed information not only about the vertical infiltration, but also concerning horizontal fluxes (like e.g. the hypodermic discharge). Although the complete resolution of this equation is mastered, a full 3D model is too costly for large scale - in time and space - real applications (climate change adaptation of watersheds). Therefore the authors propose a 1D vertical finite volume model of the Richards equation, with suitable interactions enabling the management of the horizontal fluxes and the subsequent handling of the 3D behaviour of the unsaturated layer. The model is first validated for its vertical behaviour, and then tested on different 2D test cases in order to visualise the reliability of the proposed method.
File Size : 380,302 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 3: Water and Carbon: Climate Change Impact
Date Published : 01/07/2011
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