Please use this identifier to cite or link to this item:
|Title:||Unsaturated soil seepage analysis using a rational transformation method with under-relaxation|
|Authors:||Cheng, Y.-G. |
Finite element method
|Citation:||Cheng, Y.-G., Phoon, K.-K., Tan, T.-S. (2008-05). Unsaturated soil seepage analysis using a rational transformation method with under-relaxation. International Journal of Geomechanics 8 (3) : 207-212. ScholarBank@NUS Repository. https://doi.org/10.1061/(ASCE)1532-3641(2008)8:3(207)|
|Abstract:||The finite-element method provides a convenient and effective means for solving problems of seepage in unsaturated soils. However, convergence difficulties exist in numerical simulations of unsaturated flow analyses because of the high nonlinearity of the soil hydraulic properties. This technical note presents a combination approach consisting of a rational function transformation method and a common under-relaxation technique to solve the h-based form of Richards equation. Numerical studies show that this combined method can use a larger time step and corresponding oscillation-free mesh size to produce acceptable results and also converge to a stable solution quickly in each time step. © 2008 ASCE.|
|Source Title:||International Journal of Geomechanics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Oct 16, 2018
WEB OF SCIENCETM
checked on Oct 8, 2018
checked on Aug 31, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.