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Description
| - This paper presents a numerical solution to the equations describing Darcian flow in a variably saturated porous medium-a classical Richards' equation model Richards (1931) and an extension of it that approximates the flow in media with preferential paths-a dual porosity model Gerke and van Genuchten (1993). A numerical solver to this problem, the DRUtES computer program, was developed and released during our investigation. A new technique which maintains an adaptive time step, defined here as the Retention Curve Zone Approach, was constructed and tested. The aim was to limit the error of a linear approximation to the time derivative part. Finally, parameter identification was performed in order to compare the behavior of the dual porosity model with data obtained from a non-homogenized fracture and matrix flow simulation experiment.
- This paper presents a numerical solution to the equations describing Darcian flow in a variably saturated porous medium-a classical Richards' equation model Richards (1931) and an extension of it that approximates the flow in media with preferential paths-a dual porosity model Gerke and van Genuchten (1993). A numerical solver to this problem, the DRUtES computer program, was developed and released during our investigation. A new technique which maintains an adaptive time step, defined here as the Retention Curve Zone Approach, was constructed and tested. The aim was to limit the error of a linear approximation to the time derivative part. Finally, parameter identification was performed in order to compare the behavior of the dual porosity model with data obtained from a non-homogenized fracture and matrix flow simulation experiment. (en)
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Title
| - An adaptive time discretization of the classical and the dual porosity model of Richards' equation
- An adaptive time discretization of the classical and the dual porosity model of Richards' equation (en)
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skos:prefLabel
| - An adaptive time discretization of the classical and the dual porosity model of Richards' equation
- An adaptive time discretization of the classical and the dual porosity model of Richards' equation (en)
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skos:notation
| - RIV/68407700:21110/10:00167821!RIV11-MSM-21110___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(QH91247), Z(MSM0021620855), Z(MSM6840770003)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/68407700:21110/10:00167821
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Darcy's law; Variable saturation; Retention curve; Mass balance; Adaptive time discretization; Preferential flow; Homogenization; Parameter identification; Multi-objective evolutionary algorithm (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Computational and Applied Mathematics
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Lepš, Matěj
- Kuráž, M.
- Mayer, Petr
- Trpkošová, D.
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http://linked.open...ain/vavai/riv/wos
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://localhost/t...ganizacniJednotka
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is http://linked.open...avai/riv/vysledek
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