3D SPH numerical simulation of the wave generated by the Vajont rockslide |
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| Institution: | 1. Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of mechanics, Chinese Academy of Sciences, Beijing, 100190, China;2. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China;1. Geohazards and Earth Processes Research Group, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK;2. Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK;3. School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester M13 9PL, UK;1. Department of Aeronautics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK;2. Department of Engineering and Architecture, Parma University, Parco Area delle Scienze 181/A, Parma, 43124 Italy |
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| Abstract: | A 3D numerical modeling of the wave generated by the Vajont slide, one of the most destructive ever occurred, is presented in this paper. A meshless Lagrangian Smoothed Particle Hydrodynamics (SPH) technique was adopted to simulate the highly fragmented violent flow generated by the falling slide in the artificial reservoir. The speed-up achievable via General Purpose Graphic Processing Units (GP-GPU) allowed to adopt the adequate resolution to describe the phenomenon. The comparison with the data available in literature showed that the results of the numerical simulation reproduce satisfactorily the maximum run-up, also the water surface elevation in the residual lake after the event.Moreover, the 3D velocity field of the flow during the event and the discharge hydrograph which overtopped the dam, were obtained. |
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| Keywords: | Vajont Rockslide Smoothed particle hydrodynamics Navier–Stokes Free-surface flows |
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