This paper illustrates the validation of a quasi three-dimensional model of overland flow and soil erosion phenomena by comparing numerical investigations with the results of an ad hoc designed field experiment. The model couples a shock capturing finite-volume approximate solution of a kinematic wave and soil transport rill model with a two-dimensional finite element solution of a variably saturated Richards' equation on the vertical plane perpendicular to the rill. The rill is 2 m long on a sandy hill with a 9 % slope. Preliminary results show a good agreement between measured and simulated discharges.

Rill erosion on a sandy soil: preliminary field experiment and quasi-3D numerical simulation

FERRARIS, Stefano;
1998-01-01

Abstract

This paper illustrates the validation of a quasi three-dimensional model of overland flow and soil erosion phenomena by comparing numerical investigations with the results of an ad hoc designed field experiment. The model couples a shock capturing finite-volume approximate solution of a kinematic wave and soil transport rill model with a two-dimensional finite element solution of a variably saturated Richards' equation on the vertical plane perpendicular to the rill. The rill is 2 m long on a sandy hill with a 9 % slope. Preliminary results show a good agreement between measured and simulated discharges.
1998
IAHS Publication n.249 "Modeling soil erosion, sediment transport and closely related hydrological processes"
IAHS-AISH Press
45
51
Rill erosion; finite elements; Godunov-type methods
S. FERRARIS; CARRA G; GALLO C; MANZINI G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/12337
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