Integration of UAV Photogrammetry and SPH Modelling of Fluids to Study Runoff on Real TerrainsReport as inadecuate




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Roads can experience runoff problems due to the intense rain discharge associated to severe storms. Two advanced tools are combined to analyse the interaction of complex water flows with real terrains. UAV Unmanned Aerial Vehicle photogrammetry is employed to obtain accurate topographic information on small areas, typically on the order of a few hectares. The Smoothed Particle Hydrodynamics SPH technique is applied by means of the DualSPHysics model to compute the trajectory of the water flow during extreme rain events. The use of engineering solutions to palliate flood events is also analysed. The study case simulates how the collected water can flow into a close road and how precautionary measures can be effective to drain water under extreme conditions. The amount of water arriving at the road is calculated under different protection scenarios and the efficiency of a ditch is observed to decrease when sedimentation reduces its depth.



Author: Anxo Barreiro, Jose M. Domínguez, Alejandro J. C. Crespo , Higinio González-Jorge, David Roca, Moncho Gómez-Gesteira

Source: http://plos.srce.hr/



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