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FullSWOF: a software for overland flow simulation

Abstract : Overland flow on agricultural fields may have some undesirable effects such as soil erosion, flood and pollutant transport. To better understand this phenomenon and limit its consequences, we developed a code using state-of-the-art numerical methods: FullSWOF (Full Shallow Water equations for Overland Flow), an object oriented code written in C++. It has been made open-source and can be downloaded from The model is based on the classical system of Shallow Water (SW) (or Saint-Venant system). Numerical difficulties come from the numerous dry/wet transitions and the highly-variable topography encountered inside a field. The code includes runon and rainfall inputs, infiltration (modified Green-Ampt equation), friction (Darcy-Weisbach and Manning formulas). First we present the numerical method for the resolution of the Shallow Water equations integrated in FullSWOF_2D (the two-dimension version). This method is based on hydrostatic reconstruction scheme, coupled with a semi-implicit friction term treatment. FullSWOF_2D has been previously validated using analytical solutions from the SWASHES library (Shallow Water Analytic Solutions for Hydraulic and Environmental Studies). FullSWOF_2D is run on a real topography measured on a runoff plot located in Thies (Senegal). Simulation results are compared with measured data. This experimental benchmark demonstrate the capabilities of FullSWOF to simulate adequately overland flow. FullSWOF could also be used for other environmental issues, such as river floods and dam-breaks.
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Submitted on : Wednesday, June 3, 2020 - 3:31:52 PM
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  • HAL Id : hal-02749492, version 1
  • PRODINRA : 263022


Olivier Delestre, Stéphane Cordier, Frédéric Darboux, Mingxuan Du, Francois James, et al.. FullSWOF: a software for overland flow simulation. SIMHYDRO 2012 – New Frontiers of Simulation, Société Hydrotechnique de France (SHF). FRA., Sep 2010, Nice, France. ⟨hal-02749492⟩



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