Abstract
In this paper, a numerical wave tank with open relaxation boundary
for wave simulation is presented under the framework of weakly compressible Smoothed Particle Hydrodynamics (SPH). The open relaxation
boundary consists of open boundaries and relaxation particles. A relaxation function is applied for the relaxation particles which are placed between the inflow/outflow zone and the fluid domain. Open particles lie in
the inflow/outflow regions to avoid kernel truncation. The open particles
and relaxation particles can be created and deleted depending on the fluid
motion around the open boundaries, and the properties of these particles
can be obtained from theoretical resolution or by extrapolating within
the domain. The model is validated by simulating a 2nd Stokes wave and
wave runup on a beach. The results demonstrate that the present SPH
model with open relaxation boundary works well in wave generation and
absorption.
for wave simulation is presented under the framework of weakly compressible Smoothed Particle Hydrodynamics (SPH). The open relaxation
boundary consists of open boundaries and relaxation particles. A relaxation function is applied for the relaxation particles which are placed between the inflow/outflow zone and the fluid domain. Open particles lie in
the inflow/outflow regions to avoid kernel truncation. The open particles
and relaxation particles can be created and deleted depending on the fluid
motion around the open boundaries, and the properties of these particles
can be obtained from theoretical resolution or by extrapolating within
the domain. The model is validated by simulating a 2nd Stokes wave and
wave runup on a beach. The results demonstrate that the present SPH
model with open relaxation boundary works well in wave generation and
absorption.
| Original language | English |
|---|---|
| Title of host publication | The 31st International Ocean and Polar Engineering Conference |
| Pages | 1612-1617 |
| Publication status | Published - 1 Jan 2021 |
| Event | 31st International Offshore and Polar Engineering Conference - Duration: 20 Jun 2021 → 25 Jun 2021 |
Conference
| Conference | 31st International Offshore and Polar Engineering Conference |
|---|---|
| Period | 20/06/21 → 25/06/21 |