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Article

Calibration of CFD Numerical Model for the Analysis of a Combined Caisson

1
Department of Engineering, University of Messina, Contrada di Dio, Sant’Agata, 98166 Messina, Italy
2
Department of Civil Engineering and Architecture, University of Catania, Via Santa Sofia, 95123 Catania, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Mauro De Marchis
Water 2021, 13(20), 2862; https://doi.org/10.3390/w13202862
Received: 2 September 2021 / Revised: 1 October 2021 / Accepted: 8 October 2021 / Published: 13 October 2021
(This article belongs to the Special Issue Wave-Driven Processes in the Coastal Zones)
The purpose of this work is the calibration of a numerical model for simulating the interaction of waves with a composite caisson having an internal rubble mound to dissipate incident sea wave energy. In particular, the analysis focused on the reflection coefficient and the pressure distribution at the caisson vertical walls. The numerical model is based on the Volume-Average Reynolds-Averaged Navier–Stokes (VARANS) equations. Through three closure terms (linear, nonlinear, and transition), such equations take into account some phenomena that cannot be dealt when the volume-average method is used (i.e., frictional forces, pressure force, and added mass). To reproduce properly the real phenomena, a calibration process of such terms is necessary. The reference data used in the calibration process were obtained from an experimental campaign carried out at the Hydraulics Laboratory of the University of Messina. The calibration process allowed the proper prediction of certain phenomena to be expressed as a function of different closing terms. In particular, it was estimated that the reflection coefficient and the wave loading at the frontal wall are better reproduced when all three terms are considered, while the force at the rear wall is better simulated when the effects of such terms are neglected. View Full-Text
Keywords: porous media; OpenFOAM®; reflection coefficient; wave pressure; wave loading; VARANS equations porous media; OpenFOAM®; reflection coefficient; wave pressure; wave loading; VARANS equations
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MDPI and ACS Style

Iuppa, C.; Carlo, L.; Foti, E.; Faraci, C. Calibration of CFD Numerical Model for the Analysis of a Combined Caisson. Water 2021, 13, 2862. https://doi.org/10.3390/w13202862

AMA Style

Iuppa C, Carlo L, Foti E, Faraci C. Calibration of CFD Numerical Model for the Analysis of a Combined Caisson. Water. 2021; 13(20):2862. https://doi.org/10.3390/w13202862

Chicago/Turabian Style

Iuppa, Claudio, Lilia Carlo, Enrico Foti, and Carla Faraci. 2021. "Calibration of CFD Numerical Model for the Analysis of a Combined Caisson" Water 13, no. 20: 2862. https://doi.org/10.3390/w13202862

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