A DRBEM with a predictor-corrector scheme for steady infiltration from periodic channels with root-water uptake

作者：Solekhudin Imam^*; Ang Keng Cheng

来源：Engineering Analysis with Boundary Elements, 2012, 36(8): 1199-1204.

DOI：10.1016/j.enganabound.2012.02.013

• Richard%26apos
• s equation
• Helmholtz equation
• DRBEM
• Predictor-corrector
• Infiltration
• Root water uptake

Water flow in unsaturated soils that is induced by infiltration and root-water uptake processes is governed by Richard%26apos;s equation. To study the governing equation more conveniently, it is transformed into a modified Helmholtz equation using the Kirchhoff transformation with dimensionless variables. In this study, we employ a dual reciprocity boundary element method (DRBEM) and the predictor-corrector method to numerically solve problems governed by the equation. The proposed method is tested on problems involving infiltration from periodic channels with root water uptake.

• 出版日期2012-8
• 单位南阳理工学院