This paper deals with the analytical solution of kinematic wave equations for overland flow occurring in an infiltrating hillslope. The infiltration process is described by the Green-Ampt model. The solution is derived only for the case of an intermediate flow regime between laminar and turbulent ones. A transitional regime can be considered a reliable flow condition when, to the laminar overland flow, is also associated the effect of the additional resistance due to raindrop impact. With reference to the simple case of an impervious hillslope, a comparison was carried out between the present solution and the non-linear storage model. Some applications of the present solution were performed to investigate the effect of main parameter variability on the hillslope response. Particularly, the effect of hillslope geometry and rainfall intensity on the time to equilibrium is shown.

Agnese, C., Baiamonte, G. (2010). An analytical solution of kinematic wave equations for overland flow under Green-Ampt infiltration. JOURNAL OF AGRICULTURAL ENGINEERING, 1(1), 41-49.

An analytical solution of kinematic wave equations for overland flow under Green-Ampt infiltration

AGNESE, Carmelo;BAIAMONTE, Giorgio
2010-01-01

Abstract

This paper deals with the analytical solution of kinematic wave equations for overland flow occurring in an infiltrating hillslope. The infiltration process is described by the Green-Ampt model. The solution is derived only for the case of an intermediate flow regime between laminar and turbulent ones. A transitional regime can be considered a reliable flow condition when, to the laminar overland flow, is also associated the effect of the additional resistance due to raindrop impact. With reference to the simple case of an impervious hillslope, a comparison was carried out between the present solution and the non-linear storage model. Some applications of the present solution were performed to investigate the effect of main parameter variability on the hillslope response. Particularly, the effect of hillslope geometry and rainfall intensity on the time to equilibrium is shown.
2010
Agnese, C., Baiamonte, G. (2010). An analytical solution of kinematic wave equations for overland flow under Green-Ampt infiltration. JOURNAL OF AGRICULTURAL ENGINEERING, 1(1), 41-49.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/61190
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