Numerical Investigation Of Sandy Beach
Evolution Using An Incompressible
Smoothed Particle Hydrodynamics Method
Author(s)
N. Amanifard, S. M. Mahnama, S. A. L. Neshaei
& M. A. Mehrdad
Abstract
The current work presents an incompressible smoothed particle hydrodynamics
(SPH) model to simulate sandy beach evolution. The Navier-Stokes equations
are solved in a Lagrangian framework using a three-step fractional method. In
the first step, a temporary velocity field is provided according to the relevant
body forces. This velocity field is renewed in the second step to include the
viscosity effects. A Poisson equation is employed in the third step as an
alternative for the equation of state in order to evaluate pressure. The present
method is validated by solving a free surface problem and comparing the
computational results with the experimental results, as well as numerical data
that is evaluated from the standard SPH method. Then, based on an experimental
model, the simulation of sandy beach evolution has been investigated by this
method. Comparison of the computed results with previous studies that are
reported in coastal engineering references implies the capability of the method
for the simulation of such complex flows.
Keywords: smoothed particle hydrodynamics (SPH), Lagrangian method, free
surface, sandy beach evolution.
Keywords
smoothed particle hydrodynamics (SPH), Lagrangian method, free
surface, sandy beach evolution
Related Book
Other papers in this volume
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