TY - JOUR
T1 - Application of open boundaries within a two-way coupled SPH model to simulate non-linear wave-structure interactions
AU - Verbrugghe, T.
AU - Domìnguez, J. M.
AU - Altomare, C.
AU - Tafuni, A.
AU - Troch, P.
AU - Kortenhaus, A.
N1 - Funding Information:
The first author is grateful to receive the financial support from the “Agency for Innovation by Science and Technology in Flanders (IWT)” with the scholarship 141402.
PY - 2018
Y1 - 2018
N2 - A two-way coupling between the fully non-linear potential flow (FNPF) solver OceanWave3D and the Smoothed Particle Hydrodynamics (SPH) solver DualSPHysics is presented. At the coupling interfaces within the SPH domain, an open boundary formulation is applied. An inlet and outlet zone are filled with buffer particles. At the inlet, horizontal orbital velocities and surface elevations calculated with OceanWave3D are imposed on the buffer particles. At the outlet, horizontal orbital velocities are imposed, but the surface elevation is extrapolated from the fluid domain. Velocity corrections are applied to avoid unwanted reflections in the fluid domain. The SPH surface elevation can be coupled back to OceanWave3D, where the original solution is overwritten. The coupling methodology is validated using a 2-D test case of a floating box. Additionally, a 3-D proof of concept is shown where overtopping waves are acting on a heaving cylinder. The 2-way coupled model proofs to be capable of simulating wave propagation and wave-structure interaction problems with an acceptable accuracy with RMSE values remaining below the smoothing length h.
AB - A two-way coupling between the fully non-linear potential flow (FNPF) solver OceanWave3D and the Smoothed Particle Hydrodynamics (SPH) solver DualSPHysics is presented. At the coupling interfaces within the SPH domain, an open boundary formulation is applied. An inlet and outlet zone are filled with buffer particles. At the inlet, horizontal orbital velocities and surface elevations calculated with OceanWave3D are imposed on the buffer particles. At the outlet, horizontal orbital velocities are imposed, but the surface elevation is extrapolated from the fluid domain. Velocity corrections are applied to avoid unwanted reflections in the fluid domain. The SPH surface elevation can be coupled back to OceanWave3D, where the original solution is overwritten. The coupling methodology is validated using a 2-D test case of a floating box. Additionally, a 3-D proof of concept is shown where overtopping waves are acting on a heaving cylinder. The 2-way coupled model proofs to be capable of simulating wave propagation and wave-structure interaction problems with an acceptable accuracy with RMSE values remaining below the smoothing length h.
KW - Coupling
KW - Open Boundaries
KW - Smoothed Particle Hydrodynamics
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M3 - Conference article
AN - SCOPUS:85074116045
SN - 0161-3782
VL - 36
JO - Proceedings of the Coastal Engineering Conference
JF - Proceedings of the Coastal Engineering Conference
IS - 2018
T2 - 36th International Conference on Coastal Engineering, ICCE 2018
Y2 - 30 July 2018 through 3 August 2018
ER -