- Tytuł:
- Simulation of water flow in double-porosity soils on unstructured grids with the finite-volume method
- Autorzy:
-
Szymkiewicz, A.
Burzyński, K. - Powiązania:
- https://bibliotekanauki.pl/articles/1933157.pdf
- Data publikacji:
- 2007
- Wydawca:
- Politechnika Gdańska
- Tematy:
-
double-porosity soils
Richards' equation
unsaturated zone
finite volume method
unstructured grid - Opis:
- Double-porosity soils consist of two interacting porous systems corresponding to weakly conductive aggregates and highly conductive inter-aggregate regions. The flow of water in such media can be described with a two-scale model obtained by homogenization. The model consists of a single macroscopic equation for the flow in the highly conductive porous system coupled with a number of micro-scale equations for the flow in the weakly conductive aggregates. In this paper we present a numerical algorithm to solve the resulting system of equations for the case of macroscopically two-dimensional flow. It is based on the finite volume approach for unstructured grid of triangular cells. Special attention is paid to the coupling of the micro- and macro-scale equations. An exemplary calculation is presented, concerning infiltration and redistribution of water in a hill-slope of double-porosity structure with cubic aggregates.
- Źródło:
-
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2007, 11, 4; 397-410
1428-6394 - Pojawia się w:
- TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
- Dostawca treści:
- Biblioteka Nauki
Artykuł