Experimental analysis of post-overtopping flows on composite vertical breakwaters with retreated wave walls: mapping of the hydrodynamic parameters

Retreated wave walls are often used to improve the hydrodynamic performance of composite vertical breakwaters placed in relatively deep-water conditions. The wall retreat changes significantly the dynamics of wave-structure interaction, making the current design criteria not adequate for such struct...

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Detalles Bibliográficos
Autores: Centorami, Matteo, Romano, Alessandro, Cecioni, Claudia, Bellotti, Giorgio
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/37215
Acceso en línea:https://hdl.handle.net/10902/37215
Access Level:acceso abierto
Palabra clave:Vertical breakwaters
Post-overtopping flows
Wave-structure interaction
Physical model tests
Water waves
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spelling Experimental analysis of post-overtopping flows on composite vertical breakwaters with retreated wave walls: mapping of the hydrodynamic parametersCentorami, MatteoRomano, AlessandroCecioni, ClaudiaBellotti, GiorgioVertical breakwatersPost-overtopping flowsWave-structure interactionPhysical model testsWater wavesRetreated wave walls are often used to improve the hydrodynamic performance of composite vertical breakwaters placed in relatively deep-water conditions. The wall retreat changes significantly the dynamics of wave-structure interaction, making the current design criteria not adequate for such structures. Previous experimental findings highlight that these processes are governed by the complex hydrodynamics driven by the characteristics of post-overtopping flows occurring on the superstructure between the seaward edge of the caisson trunk and the wave wall. In this article a new 2D experimental campaign has been carried out to explore the hydrodynamics of post-overtopping flows on composite vertical breakwaters with retreated wave wall. To improve the overall understanding of the phenomena, these flows have been analyzed and classified into three distinct types, based on wave characteristics and structural parameters, namely: Dam break (DB), Plunging-Dam break (PDB), and Hammer-Fist (HF). Then, the characteristics of each event type have been studied as a function of the wave wall retreat position. To this end, an advanced image-clustering analysis technique has been applied to visualize the process and estimate those quantities which are difficult to measure with direct measurement techniques (e.g., air content). Moreover, wave-induced loads on the wall and downfall pressures have been measured, allowing to explore how different flow types, wall retreats, and aeration levels could affect impact loads and flow dynamics. The detailed analysis of the post-overtopping flows dynamics, combined with the measurements of the forces acting on the wave wall, allowed to obtain a comprehensive parameters map, based on the flows classification and geometrical dimensions, which contributes to the development of practical design tools for such structures.A special acknowledgment is due to the master’s student Matteo Scaramozzino for the help provided during the experimental campaign.ElsevierUniversidad de Cantabria20252025-12-15journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttps://hdl.handle.net/10902/37215Coastal Engineering, 2025, 202, 104839reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/372152026-06-02T12:39:31Z
dc.title.none.fl_str_mv Experimental analysis of post-overtopping flows on composite vertical breakwaters with retreated wave walls: mapping of the hydrodynamic parameters
title Experimental analysis of post-overtopping flows on composite vertical breakwaters with retreated wave walls: mapping of the hydrodynamic parameters
spellingShingle Experimental analysis of post-overtopping flows on composite vertical breakwaters with retreated wave walls: mapping of the hydrodynamic parameters
Centorami, Matteo
Vertical breakwaters
Post-overtopping flows
Wave-structure interaction
Physical model tests
Water waves
title_short Experimental analysis of post-overtopping flows on composite vertical breakwaters with retreated wave walls: mapping of the hydrodynamic parameters
title_full Experimental analysis of post-overtopping flows on composite vertical breakwaters with retreated wave walls: mapping of the hydrodynamic parameters
title_fullStr Experimental analysis of post-overtopping flows on composite vertical breakwaters with retreated wave walls: mapping of the hydrodynamic parameters
title_full_unstemmed Experimental analysis of post-overtopping flows on composite vertical breakwaters with retreated wave walls: mapping of the hydrodynamic parameters
title_sort Experimental analysis of post-overtopping flows on composite vertical breakwaters with retreated wave walls: mapping of the hydrodynamic parameters
dc.creator.none.fl_str_mv Centorami, Matteo
Romano, Alessandro
Cecioni, Claudia
Bellotti, Giorgio
author Centorami, Matteo
author_facet Centorami, Matteo
Romano, Alessandro
Cecioni, Claudia
Bellotti, Giorgio
author_role author
author2 Romano, Alessandro
Cecioni, Claudia
Bellotti, Giorgio
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Vertical breakwaters
Post-overtopping flows
Wave-structure interaction
Physical model tests
Water waves
topic Vertical breakwaters
Post-overtopping flows
Wave-structure interaction
Physical model tests
Water waves
description Retreated wave walls are often used to improve the hydrodynamic performance of composite vertical breakwaters placed in relatively deep-water conditions. The wall retreat changes significantly the dynamics of wave-structure interaction, making the current design criteria not adequate for such structures. Previous experimental findings highlight that these processes are governed by the complex hydrodynamics driven by the characteristics of post-overtopping flows occurring on the superstructure between the seaward edge of the caisson trunk and the wave wall. In this article a new 2D experimental campaign has been carried out to explore the hydrodynamics of post-overtopping flows on composite vertical breakwaters with retreated wave wall. To improve the overall understanding of the phenomena, these flows have been analyzed and classified into three distinct types, based on wave characteristics and structural parameters, namely: Dam break (DB), Plunging-Dam break (PDB), and Hammer-Fist (HF). Then, the characteristics of each event type have been studied as a function of the wave wall retreat position. To this end, an advanced image-clustering analysis technique has been applied to visualize the process and estimate those quantities which are difficult to measure with direct measurement techniques (e.g., air content). Moreover, wave-induced loads on the wall and downfall pressures have been measured, allowing to explore how different flow types, wall retreats, and aeration levels could affect impact loads and flow dynamics. The detailed analysis of the post-overtopping flows dynamics, combined with the measurements of the forces acting on the wave wall, allowed to obtain a comprehensive parameters map, based on the flows classification and geometrical dimensions, which contributes to the development of practical design tools for such structures.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-12-15
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10902/37215
url https://hdl.handle.net/10902/37215
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Coastal Engineering, 2025, 202, 104839
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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