3D GUI for flash floods modeling: Applications in river catchments

Abstract

Accurate prediction of flood extents in river catchments happen to be a challenging issue. Paper exposes numerical simulation techniques of flooding circumstances, induced by flash floods, dams/ dykes breaking. The results reveal that the Computational Fluid Dynamics approach for floods modeling is skillful to adequately replicate the foremost aspects of the floods routing. Supplying warnings with an suitable probability period on the incidence of flash flood actions moderate its effect and provide considerable public and economical advantages. It is presented an integrated model that simulates the river-network and 3D mesh-network to get acceptable flood extents. The software application employed to support these investigations is called OpenFOAM, representing an open-source CFD library destinated for hydraulic structures analysis. OpenFOAM can be operated to simulate composite fluid flows involving floods and flash floods propagation, turbulence and mass transfer. A Graphical User Interface component was build to facilitate simulation sessions setup. In order to do a wide-ranging investigation and an reliable simulation of such composite flow, was developed a GUI component intended for flash floods effects visualization, rooted in a critical system approach.