Numerical Simulation of Hillslope Infiltration and Discharge into River

Abstract

Two-dimensional numerical simulations are carried out to simulate unsaturated and saturated flow in a hillslope and the discharge process from hillslope into river. The soil moisture movement characteristics within hillslope is analyzed in terms of flow pattern and flux distribution. Effects of initial conditions on discharge process are investigated. Based on the numerical simulation results, a simplified hillslope process model is proposed and checked with detailed numerical simulation, which can be used to simulate the water flow within hillslope and interaction with river.