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Vorticity Generated by a Dam Break over a Wet Bed Modeled by Smoothed Particle Hydrodynamics

Author(s): A. J. C. Crespo

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Keywords: Smoothed Particle Hydrodynamics; SPH; Dam break; Wet beds; And vorticity

Abstract: Dam break evolution over dry and wet beds is analyzed in the framework of SPH (Smoothed Particle Hydrodynamics) model. The model showed to fit accurately both the experimental dam- break profiles and the measured velocities. In addition, the model allows studying different propagation regimes during the dam- break evolution. In particular, different dissipation mechanisms were identified: bottom friction and wave breaking. Although breaking dominates over wet beds at the beginning of the movement, bottom friction becomes the main dissipation mechanism in the long run. Furthermore, vorticity is studied in terms of SPH formulation for different fluid depths.


Year: 2007

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