Daniel Caviedes-Voullième

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The 2D numerical simulation of river flow requires a large amount of topographic data to build an accurate Digital Terrain Model which must cover the main river channel and the area likely to be flooded. DTMs for large floodplains are often generated by LiDAR flights. However, it is often impossible to obtain LiDAR data of permanently inundated river beds.(More)
We provide an adaptive strategy for solving shallow water equations with dynamic grid adaptation including a sparse representation of the bottom topography. A challenge in computing approximate solutions to the shallow water equations including wetting and drying is to achieve the positivity of the water height and the well-balancing of the approximate(More)
Avalanches, debris flows and other types of gravity-driven granular flows are a common hazard in mountainous regions. These regions often have human settlements in the lower parts of valleys, with human structures dangerously exposed to the destructive effects of these geophysical flows. Therefore a scientific effort has been made to understand, model and(More)
A method that solves both groundwater and surface domains by means of modeling physical processes is presented. Numerically, the submodels are an explicit 2D finite volume shallow-water equations solver and an implicit 3D finite volume Richards equation solver. To link the submodels a non-iterative external coupling algorithm is used. The integrated model(More)
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