Compressible Smoothed Particle Hydrodynamics for Numerical Simulation of Impulsive Waves
In this work, Compressible Smoothed Particle Hydrodynamics was used for numerical simulation of impulsive waves generated by landslides. SPH is a mesh-less method, which was introduced for astrophysical applications, but rapidly extended and used in engineering fields, including free surface flows and wave propagation. Laboratory investigations have been performed on the landslide generated waves at Sharif University of Technology to study impulse wave characteristics. The effects of submarine and sub-aerial landslide on the wave characteristics were considered and studied. Also, a wide range of effective parameters including geometry and deformation of wedge on impulsive wave characteristics have been inspected. In this paper, first, general features of laboratory experiments are described. Then, a general model based on C-SPH, “SPHysics”, is used for two and three dimensional numerical simulation of impulsive wave. Comparison between experimental and computational results proves applicability of the C-SPH method for simulation of these kinds of problems.
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