| Volumes and Issues Contents of Issue 3 |
www.hydrol-earth-syst-sci-discuss.net/6/3811/2009/
doi:10.5194/hessd-6-3811-2009
© Author(s) 2009. This work is distributed
under the Creative Commons Attribution 3.0 License.
Assessment of water penetration problem in unsaturated soils
1Departments of Civil and Mechanical Engineering, Babol University of Technology, Babol, Iran
2Faculty of Engineering, University of Golestan, Gorgan, Iran
3Department of Civil Engineering, Shahid Bahonar University, Kerman, Iran
Abstract. Unsaturated flow of soils in unsaturated soils is an important problem in geotechnical and geo-environmental engineering. Richards' equation is often used to model this phenomenon in porous media. Obtaining proper solution to this equation therefore provides better means to studying the infiltration into unsaturated soils. Available methods for the solution of Richards' equation mostly fall in the category of numerical methods, often having restrictions for practical cases. In this research, two analytical methods known as Homotopy Perturbation Method (HPM) and Variational Iteration Method (VIM) have been successfully utilized for solving Richards' equation. Results obtained from the two methods mentioned show a remarkably high precision in the obtained solution, compared with the existing exact solutions available.
Discussion Paper (PDF, 600 KB) Interactive Discussion (Closed, 6 Comments) Publication in HESS not foreseen
Citation: Barari, A., Omidvar, M., Ghotbi, A. R., and Ganji, D. D.: Assessment of water penetration problem in unsaturated soils, Hydrol. Earth Syst. Sci. Discuss., 6, 3811-3833, doi:10.5194/hessd-6-3811-2009, 2009. Bibtex EndNote Reference Manager XML
