Solving the nonlinear and nonstationary Richards equation with two-level adaptive domain decomposition ( dd -adaptivity)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F15%3A67850" target="_blank" >RIV/60460709:41330/15:67850 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21110/15:00242994

Result on the web

<a href="http://dx.doi.org/10.1016/j.amc.2015.03.130" target="_blank" >http://dx.doi.org/10.1016/j.amc.2015.03.130</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.amc.2015.03.130" target="_blank" >10.1016/j.amc.2015.03.130</a>

Result language

angličtina

Original language name

Solving the nonlinear and nonstationary Richards equation with two-level adaptive domain decomposition ( dd -adaptivity)

Original language description

Modeling the transport processes in the vadose zone, e.g. modeling contaminant transport, the effect of the soil water regime on changes in soil structure and composition, plays an important role in predicting the reactions of soil biotopes to anthropogenic activities. Water flow is governed by the quasilinear Richards equation, while the constitutive laws are typically supplied by the van Genuchten model, which can be understood as a pore size distribution function. Certain materials with dominantly uniform pore sizes (e.g. coarse-grained materials) can exhibit ranges of constitutive function values within several orders of magnitude. Numerical approximation of the Richards equation requires sequential solutions of systems of linear equations arisingfrom discretization and linearization of the problem. Typically, in the case of two- and three-dimensional problems, it is necessary to solve huge systems of linear equations to obtain only a few local updates of the solution. Since the R

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DA - Hydrology and limnology

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

APPLIED MATHEMATICS AND COMPUTATION

ISSN

0096-3003

e-ISSN

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Volume of the periodical

2015

Issue of the periodical within the volume

267

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

16

Pages from-to

207-222

UT code for WoS article

000361571100017

EID of the result in the Scopus database

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