Submerged shore-parallel breakwaters for coastal defence are a good compromise between the need to mitigate the effects of waves on the coast and the ambition to ensure the preservation of the landscape and water quality. In this work we simulate, in a fully three-dimensional form, the hydrodynamic effects induced by submerged breakwaters on incident wave trains with different wave height. The proposed three-dimensional non-hydrostatic finite-volume model is based on an integral form of the Navier-Stokes equations in σ-coordinates and is able to simulate the shocks in the numerical solution related to the wave breaking. The obtained numerical results show that the hydrodynamic phenomena produced by wave-structure interaction have features of three-dimensionality (undertow), that are locally important, and emphasize the need to use a non-hydrostatic fully-three-dimensional approach.

Numerical investigation of the three-dimensional velocity fields induced by wave-structure interaction / Cannata, Giovanni; Gallerano, Francesco; Palleschi, Federica; Petrelli, Chiara; Barsi, Luca. - In: ITM WEB OF CONFERENCES. - ISSN 2271-2097. - 24 (edited by Bardis, Nikos ):(2019), pp. 1-10. ((Intervento presentato al convegno AMCSE 2018 - International Conference on Applied Mathematics, Computational Science and Systems Engineering tenutosi a Rome, Italy [10.1051/itmconf/20192402011].

Numerical investigation of the three-dimensional velocity fields induced by wave-structure interaction

Cannata, Giovanni
Primo
;
Gallerano, Francesco
Secondo
;
Palleschi, Federica;Petrelli, Chiara
Penultimo
;
Barsi, Luca
Ultimo
2019

Abstract

Submerged shore-parallel breakwaters for coastal defence are a good compromise between the need to mitigate the effects of waves on the coast and the ambition to ensure the preservation of the landscape and water quality. In this work we simulate, in a fully three-dimensional form, the hydrodynamic effects induced by submerged breakwaters on incident wave trains with different wave height. The proposed three-dimensional non-hydrostatic finite-volume model is based on an integral form of the Navier-Stokes equations in σ-coordinates and is able to simulate the shocks in the numerical solution related to the wave breaking. The obtained numerical results show that the hydrodynamic phenomena produced by wave-structure interaction have features of three-dimensionality (undertow), that are locally important, and emphasize the need to use a non-hydrostatic fully-three-dimensional approach.
AMCSE 2018 - International Conference on Applied Mathematics, Computational Science and Systems Engineering
three-dimensional; time-dependent coordinates; free-surface flow; undertow
04 Pubblicazione in atti di convegno::04c Atto di convegno in rivista
Numerical investigation of the three-dimensional velocity fields induced by wave-structure interaction / Cannata, Giovanni; Gallerano, Francesco; Palleschi, Federica; Petrelli, Chiara; Barsi, Luca. - In: ITM WEB OF CONFERENCES. - ISSN 2271-2097. - 24 (edited by Bardis, Nikos ):(2019), pp. 1-10. ((Intervento presentato al convegno AMCSE 2018 - International Conference on Applied Mathematics, Computational Science and Systems Engineering tenutosi a Rome, Italy [10.1051/itmconf/20192402011].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1224977
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