ALGORITHMS FOR SOLVING DARCIAN FLOW IN STRUCTURED POROUS MEDIA
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F13%3A00215620" target="_blank" >RIV/68407700:21110/13:00215620 - isvavai.cz</a>
Alternative codes found
RIV/60460709:41330/13:60588
Result on the web
<a href="https://ojs.cvut.cz/ojs/index.php/ap/article/view/1829/1661" target="_blank" >https://ojs.cvut.cz/ojs/index.php/ap/article/view/1829/1661</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
ALGORITHMS FOR SOLVING DARCIAN FLOW IN STRUCTURED POROUS MEDIA
Original language description
This paper presents several algorithms that were implemented in DRUtES [1], a new open source project. DRUtES is a ?nite element solver for coupled nonlinear parabolic problems, namely the Richards equation with the dual porosity approach (modeling the ?ow of liquids in a porous medium). Mass balance consistency is crucial in any hydrological balance and contaminant transportation evaluations. An incorrect approximation of the mass term greatly depreciates the results that are obtained. An algorithm forautomatic time step selection is presented, as the proper time step length is crucial for achieving accuracy of the Euler time integration method. Various problems arise with poor conditioning of the Richards equation: the computational domain is clustered into subregions separated by a wetting front, and the nonlinear constitutive functions cover a high range of values, while a very simple diagonal preconditioning method greatly improves the matrix properties. The results are presented
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BA - General mathematics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GP13-11977P" target="_blank" >GP13-11977P: Method of an adaptive domain decomposition for solving Richards equation problems in a porous medium with contrastive hydraulic properties.</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Polytechnica
ISSN
1210-2709
e-ISSN
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Volume of the periodical
53
Issue of the periodical within the volume
4
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
12
Pages from-to
347-358
UT code for WoS article
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EID of the result in the Scopus database
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