A DRBEM for Steady Infiltration from Periodic Flat Channels with Root Water Uptake
Water flow in unsaturated soils that is induced by infiltration and plant root water uptake processes is governed by Richard's equation. To study the governing equation more conveniently, it is transformed into a form of Helmholtz equation using Kirchhoff transformation with dimensionless v...
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| Main Authors: | , |
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| Format: | Book PeerReviewed |
| Language: | English |
| Published: |
2011
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| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/134852/1/Prosiding%20SEAMS%202011.pdf https://repository.ugm.ac.id/134852/ |
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| Institution: | Universitas Gadjah Mada |
| Language: | English |
| Summary: | Water flow in unsaturated soils that is induced by infiltration and
plant root water uptake processes is governed by Richard's equation.
To study the governing equation more conveniently, it is transformed
into a form of Helmholtz equation using Kirchhoff transformation
with dimensionless variables. It may be difficult or even impossible
to obtain the analytical solutions of boundary value problems
involving this type of Helmholtz equation. In this study, we employ
the dual reciprocity boundary element method (DRBEM) to solve these
problems numerically. The proposed method is tested through an
example involving infiltration from periodic flat channels with root
water uptake. |
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