Naslov
Modeling Water Flow in Free Drainage Lysimeters and Soils with different Anisotropy

Autori
Filipović, Vilim ; Posavec, Kristijan, Petošić Dragutin

Izvornik
Tehnički vjesnik : znanstveno-stručni časopis tehničkih fakulteta Sveučilišta u Osijeku (1330-3651) 20 (2013), 2; 263-268

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
anisotropy ; HYDRUS-2D ; lysimeter ; numerical modeling ; water flow

Sažetak
In this paper a numerical model was used to evaluate water flow in free drainage lysimeters with respect to soil anisotropy (hydraulic conductivity). Lysimeters were installed in undisturbed soil profile on two soil types with different anisotropy (low and high). The soil types were classified as Luvic Stagnic Phaeozem Siltic and Haplic Gleysol Calcaric Eutric Siltic. For numerical simulation the HYDRUS-2D software was used, which solves water flow with the Richard’s equation and uses the Galerkin’s finite element method for space discretization. Simulations have shown evident differences in water flow in the case of different anisotropy. Free drainage lysimeters can be useful devices to collect water in soil profile and to describe water flow in heterogeneous soil, but anisotropy has a large influence on efficiency.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Rudarstvo, nafta i geološko inženjerstvo, Poljoprivreda (agronomija)

POVEZANOST RADA