NUMERICAL SOLUTION OF THE RICHARDS EQUATION BASED CATCHMENT RUNOFF MODEL WITH DD-ADAPTIVITY ALGORITHM AND BOUSSINESQ EQUATION ESTIMATOR
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F17%3A74523" target="_blank" >RIV/60460709:41330/17:74523 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1556/606.2017.12.1.3" target="_blank" >http://dx.doi.org/10.1556/606.2017.12.1.3</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1556/606.2017.12.1.3" target="_blank" >10.1556/606.2017.12.1.3</a>
Alternative languages
Result language
angličtina
Original language name
NUMERICAL SOLUTION OF THE RICHARDS EQUATION BASED CATCHMENT RUNOFF MODEL WITH DD-ADAPTIVITY ALGORITHM AND BOUSSINESQ EQUATION ESTIMATOR
Original language description
This paper presents a pseudo-deterministic catchment runoff model based on the Richards equation model - the governing equation for subsurface flow. The subsurface flow in a catchment is described here by two-dimensional variably saturated flow (unsaturated and saturated). The governing equation is the Richards equation with a slight modification of the time derivative term, as considered e.g. by Neuman. The nonlinear nature of this problem appears in the unsaturated zone only, so it was possible to make use of adaptive domain decomposition algorithm. However delineating of the saturated zone boundary is a nonlinear computationally expensive issue. The simple one-dimensional Boussinesq equation was used here as a rough estimator of the saturated zone boundary. With this estimate the adaptive domain decomposition could always start with an optimal subdomain split, and thus it is now possible to avoid solving huge systems of linear equations in the initial iteration level. With this measure
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10501 - Hydrology
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Pollack Periodica
ISSN
1788-1994
e-ISSN
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Volume of the periodical
12
Issue of the periodical within the volume
1
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
16
Pages from-to
29-44
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-85018735878