Simulation of 3D overtopping flow–object–structure interaction with a calibration-based wave generation method with DualSPHysics and SWASH

Abstract

Ongoing climate change is a significant threat to coastal communities. To understand potential risks 18 during extreme storm events, detailed post-overtopping processes are investigated using DualSPHysics 19 and SWASH with a newly developed approach. It is a calibrated-based wave generation: a target 20 incident wave is first obtained from the validated SWASH model, and DualSPHysics creates the target 21 incident wave by adjusting the offshore wave and bathymetry conditions. This one-way coupling 22 process makes the DualSPHysics computation efficient enough to apply 3D simulation. With a vertical 23 wall at the end of a room located at the end of the promenade in a mild and shallow foreshore, the 24 present model shows a good correspondence on the wave force with literature. After confirming the 25 efficiency and accuracy of the present model, the 3D simulation with furniture inside the room was 26 conducted and visualized with the state-of-the-art visualization technique. Based on the visualization, 27 the potential risks during the extreme storm event are further discussed in this paper. The present 28 work shows a further capability of DualSPHysics to deal with wave-object-structure interaction based 29 on the latest developments in an efficient way. The developed model can be further used to 30 understand the potential risks of ongoing climate change. 31

Numerical Assessment of a Tension-Leg Platform Wind Turbine in Intermediate Water Using the Smoothed Particle Hydrodynamics Method

“…The surface is used to mirror ghost nodes from the boundary particles into the fluid domain and hence evaluate the fluid properties at these virtual positions; the SPH computation thus exploits the values mirrored on the boundary particles to approximate the fluid particle interaction [68]. The use of mDBC guarantees precise pressure computation, as shown in [67,69], and reduces the non-physical gap between boundary and fluid particles, which is very useful for simulations of engineering problems [70,71].…”

Numerical investigation of wave-induced flexible vegetation dynamics in 3D using a coupling between DualSPHysics and the FEA module of Project Chrono

“…DualSPHysics supports numerical wave paddles and is able to generate a wide range of wave conditions (Altomare et al, 2017;Domínguez et al, 2019). Moreover, it has been successfully utilized as an engineering tool for modeling coastal processes such as wave impacts on coastal structures and overtopping (Altomare et al, 2020;Suzuki et al, 2022;Gruwez et al, 2020;Zhang et al, 2018). For resolving multiphysics problems, DualSPHysics is also coupled to Project Chrono library (Tasora et al, 2016) to accommodate complex mechanical systems and multi-body conditions (Martínez-Estévez et al, 2023a).…”