Volume 8, Issue 2, September 2014, Pages 653–659
Hamid Qanza1, Abdellatif Maslouhi2, Said Abboudi3, and Abderrahim Hmimou4
1 Laboratoire Interdisciplinaire en Ressources Naturelles et en Environnement, Faculté des sciences, Université Ibn-Tofail, BP 133, 14000 Kenitra, Morocco
2 Laboratoire Interdisciplinaire en Ressources Naturelles et en Environnement, Faculté des sciences, Université Ibn-Tofail, BP 133, 14000 Kenitra, Morocco
3 IRTES-M3M, UTBM, Site de Sévenans, 90010 Belfort Cedex, France
4 Laboratoire Interdisciplinaire en Ressources Naturelles et en Environnement, Faculté des sciences, Université Ibn-Tofail, BP 133, 14000 Kenitra, Morocco
Original language: English
Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
In this work, a numerical estimation of the unsaturated physical soil hydrodynamic parameters is proposed. The mass transfer of water in the unsaturated porous media is described by the Richards model, which represents a combination of the Darcy law and the mass conservation equation. The control of the solution of the Richards equation is nonlinear and very sensitive to the knowledge of the Van Genuchten parameters {ks, ?s, ?r, n and ?}.The purpose of this study is to estimate these parameters from measurements of water content obtained at different depths of soil in the M'nasra area (north-west of Morocco). The obtained results are compared with those of the literature that refer to the study zone. A good agreement is observed between the estimated and measurement data.
Author Keywords: unsaturated porous media, Richards model, nonlinear, water content.
Hamid Qanza1, Abdellatif Maslouhi2, Said Abboudi3, and Abderrahim Hmimou4
1 Laboratoire Interdisciplinaire en Ressources Naturelles et en Environnement, Faculté des sciences, Université Ibn-Tofail, BP 133, 14000 Kenitra, Morocco
2 Laboratoire Interdisciplinaire en Ressources Naturelles et en Environnement, Faculté des sciences, Université Ibn-Tofail, BP 133, 14000 Kenitra, Morocco
3 IRTES-M3M, UTBM, Site de Sévenans, 90010 Belfort Cedex, France
4 Laboratoire Interdisciplinaire en Ressources Naturelles et en Environnement, Faculté des sciences, Université Ibn-Tofail, BP 133, 14000 Kenitra, Morocco
Original language: English
Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
In this work, a numerical estimation of the unsaturated physical soil hydrodynamic parameters is proposed. The mass transfer of water in the unsaturated porous media is described by the Richards model, which represents a combination of the Darcy law and the mass conservation equation. The control of the solution of the Richards equation is nonlinear and very sensitive to the knowledge of the Van Genuchten parameters {ks, ?s, ?r, n and ?}.The purpose of this study is to estimate these parameters from measurements of water content obtained at different depths of soil in the M'nasra area (north-west of Morocco). The obtained results are compared with those of the literature that refer to the study zone. A good agreement is observed between the estimated and measurement data.
Author Keywords: unsaturated porous media, Richards model, nonlinear, water content.
How to Cite this Article
Hamid Qanza, Abdellatif Maslouhi, Said Abboudi, and Abderrahim Hmimou, “Numerical Estimation of Unsaturated Soil Hydrodynamic Parameters,” International Journal of Innovation and Applied Studies, vol. 8, no. 2, pp. 653–659, September 2014.
