Abstract
In recent years, the request level of the numerical design of the coastal engineering problems is increasing, and as a result, the more complicated situation is newly targeted. As a typical example, the scour process by a large tsunami is widely studied with mainly targeting breakwaters. This paper presents a simple and effective sedimentation model by the projection-based particle methods for a scour process to reproduce the accurate shapes of the changed mounds behind the target scour part. This new technique is easily applied to the recently developed particle-based numerical wave flume, namely, so-called “PARISPHERE”. Its applicability is shown through a benchmark targeting an experiment of the scour process. In addition, a simple benchmark is implemented with targeting a two-phase flow problem to show the fundamental applicability of PARISPHERE to the multiphase flow simulation. In the simulation by the standard ISPH, a problem related to unphysical motions of the particles are found. While, PARISPHERE shows a good performance of the physical motions of particles with good energy conservation.
