Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
Hybridization of the wave propagation model SWASH and the meshfree particle method SPH for real coastal applications
Altomare, C.; Dominguez, J.M.; Crespo, A.J.C.; Suzuki, T.; Caceres, I.; Gómez-Gesteira, M. (2015). Hybridization of the wave propagation model SWASH and the meshfree particle method SPH for real coastal applications. Coast. Eng. J. 57(4): 1550024. https://dx.doi.org/10.1142/S0578563415500242
In: Coastal Engineering Journal. Japan Society of Civil Engineers, Committee on Coastal Engineering: Tokyo. ISSN 0578-5634; e-ISSN 1793-6292, meer
|  |
| Trefwoord |
|
| Author keywords |
Wave propagation; Meshfree methods; SWASH; DualSPHysics; Smoothed particle hydrodynamics; Hybridization |
| Auteurs | | Top |
- Altomare, C., meer
- Dominguez, J.M.
- Crespo, A.J.C.
|
- Suzuki, T., meer
- Caceres, I.
- Gómez-Gesteira, M.
|
|
| Abstract |
Two computational models, Simulating WAve till SHore (SWASH) and DualSPHysics, with different computational costs and capabilities have been hybridized in this work. SWASH is a time-domain wave model based on a finite difference method for simulating nonhydrostatic, free-surface and rotational flow while DualSPHysics is a Lagrangian meshless model based on the Smoothed Particle Hydrodynamics (SPH) technique. SWASH is a reliable model to generate and propagate waves in large domains, whereas DualSPHysics is normally used in areas close to the coastline to provide a detailed description of the interaction between sea waves and coastal structures. The presented technique is a one-way coupling, with a hybridization point where the information from SWASH is passed to DualSPHysics. SWASH is used to propagate waves along the fluid domain and to calculate velocities at different depths at the position of the hybridization point. Waves in DualSPHysics are generated by means of a moving boundary (MB) whose displacement in time is reconstructed using the velocities provided by SWASH. Each particle that forms the MB is displaced with its correspondent velocity that depends on its depth. The hybridization technique is validated with experimental data and the resulting model is proved to reproduce accurately wave heights and orbital velocities. Thus, the hybrid model preserves the flexibility and capabilities of DualSPHysics with important improvements in efficiency. In addition, it simulates wave propagation even more accurately than DualSPHysics taking advantage of SWASH strengths. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
