Smoothed Particle Hydrodynamics for Free-Surface Flows - Selected Topics of Computational and Experimental Fluid Mechanics - page 124

Ta b l e 2 Parameters of the
validation case

Parameter Va l u e

Kernel function Wendland

Time-step algorithm Symplectic

Viscosity treatment Artificial with ʱ = 0 . 05

XSPH ʵ = 0 . 5

Interparticle distance 0.008m

Total number of particles 1,151,717

Physical time 6s

Computation time 2.7h

Execution device GTX TITAN Black

Fig. 2 Different instants of the DualSPHysics simulation for the test case

parts. Most of the fluid surrounds the obstacle and a jet is created (time = 0.56, 0.64,

0.56 s). The last frame (time 2.0 s) shows the splash due to the reflected wave

generated after hitting the left wall of the container.
Numerical depth probes were computed to compare with the experimental mea-
surements. The procedure to numerically compute the wave elevation was previ-
ously used by Gómez-Gesteira and Dalrymple ( 2004 ) and it is based upon the fact

=