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DualSPHysics modelling to analyse the response of Tetrapods against solitary wave
Mitsui, J.; Altomare, C.; Crespo, A.; Dominguez, J.M.; Martínez-Estévez, I.; Suzuki, T.; Kubota, S.; Gomez-Gesteira, M. (2023). DualSPHysics modelling to analyse the response of Tetrapods against solitary wave. Coast. Eng. 183: 104315. https://dx.doi.org/10.1016/j.coastaleng.2023.104315
In: Coastal Engineering: An International Journal for Coastal, Harbour and Offshore Engineers. Elsevier: Amsterdam; Lausanne; New York; Oxford; Shannon; Tokyo. ISSN 0378-3839; e-ISSN 1872-7379
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| Trefwoorden |
Coastal protection > Coastal safety against extreme storms > Sea dikes
Numerical modelling
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| Author keywords |
SPH; DualSPHysics; Solitary wave; Tetrapods; Armour damage |
| Auteurs | | Top |
- Mitsui, J.
- Altomare, C.
- Crespo, A.
- Dominguez, J.M.
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- Martínez-Estévez, I.
- Suzuki, T., meer
- Kubota, S.
- Gomez-Gesteira, M.
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| Abstract |
The stability of Tetrapod armour units against solitary waves using Smoothed Particle Hydrodynamics (SPH) method is analysed in this work. To this purpose, the SPH-based DualSPHysics code was coupled with the multiphysics library Project Chrono. Tetrapod units are placed above a submerged mound. DualSPHysics solves the fluid-solid interaction, while Project Chrono solves the Tetrapod-mound interactions based on the contact and material properties of the block surface. The motion of the units during the simulation was compared with the physical model experiments where Tetrapods are made of mortar, and the mound is in PVC. The numerical results expressed as displacements of Tetrapods and damage ratio under different solitary waves are in reasonable agreement with the experiments, proving the capability of the DualSPHysics code to simulate challenging environments under the same numerical framework. The validated tool is then applied to study the stability for different coefficients of friction between mound and Tetrapods aiming at simulating the effects of different materials and surface roughness. |
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