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Open AccessArticle

Green Water on A Fixed Structure Due to Incident Bores: Guidelines and Database for Model Validations Regarding Flow Evolution

1
II-UNAM, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Edificio 17, Ciudad Universitaria, Mexico City 04510, Mexico
2
LabOceano (Laboratório de Tecnologia Oceânica), Programa de Engenharia Oceânica, COPPE/UFRJ, Universidade Federal do Rio de Janeiro, Parque Tecnológico do Rio, Rio de Janeiro 21941-907, Brazil
3
Departamento de Ciencias Básicas e Ingeniería, Universidad del Caribe, SM. 78, Manzana 1, Lote 1, Esq. Fraccionamiento Tabachines, Cancun 77528, Quintana Roo, Mexico
*
Author to whom correspondence should be addressed.
Water 2019, 11(12), 2584; https://doi.org/10.3390/w11122584
Received: 19 November 2019 / Revised: 3 December 2019 / Accepted: 3 December 2019 / Published: 7 December 2019
(This article belongs to the Special Issue Interaction between Waves and Maritime Structures)
This paper presents a two-dimensional experimental study of the interaction of wet dam-break bores with a fixed structure, regarding the evolution of the incident flows and the resultant green water events on the deck. The study employs image-based techniques to analyse flow propagation from videos taken by high-speed cameras, considering five different shipping water cases. The features of small air-cavities formed in some green water events of the plunging-dam-break type were analysed. Then, the spatial and temporal distribution of water elevations of the incident bores and green water were investigated, providing a database to be used for model validations. Some guidelines for the selection of the freeboard exceedance, which is of relevance for green water simulations, were provided. Finally, the relationship between the incident bore and water-on-deck kinematics was discussed. The proposed study can be used as a reference for performing simplified and systematic analyses of green water in a different two-dimensional setup, giving high-resolution data that visually capture the flow patterns and allow model validations to be performed. View Full-Text
Keywords: image analysis; green water; wet dam-break bore; 2D experimental study; water elevation database image analysis; green water; wet dam-break bore; 2D experimental study; water elevation database
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MDPI and ACS Style

Hernández-Fontes, J.V.; Esperança, P.T.T.; Graniel, J.F.B.; Sphaier, S.H.; Silva, R. Green Water on A Fixed Structure Due to Incident Bores: Guidelines and Database for Model Validations Regarding Flow Evolution. Water 2019, 11, 2584.

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