Analytical convolution model for shipping water evolution on a fixed structure

Hernández-Fontes, Jassiel V.; Vitola, Marcelo A.; Esperança, Paulo T. T.; Sphaier, Sergio H.

doi:10.1016/j.apor.2018.11.005

Cited by 18 publications

(31 citation statements)

References 14 publications

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“…One of the most important parameters in the study of green water events is the freeboard exceedance time series, or the effective water elevations from the incident wave that represent the volume of water that ships onto the deck. The maximum value of these series is known as the maximum freeboard exceedance (η 0 , Figure 12a), and it is commonly considered as input of analytical (e.g., [24,42]) or numerical (e.g., [43]) models to study green water propagation over the deck. However, not every freeboard exceedance produces the same water elevation over the deck [44].…”

Section: Freeboard Exceedancementioning

confidence: 99%

“…Mean Ufront values for the five study cases were calculated considering different domains over the deck. These values were obtained by applying linear regression analyses to the wavefront velocity (C1, EXP1, CAM1); see also [24]. η 0 and η 0,out represent the maximum freeboard exceedance for VWPd0 and VWPw0, respectively.…”

Section: Green Water Kinematicsmentioning

confidence: 99%

“…Also, using numerical and experimental methods, Kocaman and Ozmen-Cagatay [23] investigated the impacts of wet dam-break waves on a vertical wall. More recently, Hernández-Fontes et al [24,25] used the experimental wet dam-break approach to investigate green water problems, validating an analytical model for green water elevations and loading over the deck of a fixed structure, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…11, x FOR PEER REVIEW 22 of Maximum freeboard exceedance data. (a) Comparison of freeboard exceedance time series between VWPs measured before (VWPw0-Hst, x = −0.005 m) and after (VWPd0, x = 0.005 m) the bow edge of the deck (C1, EXP1, CAM1); see also[24]. η0 and η0,out represent the maximum freeboard exceedance for VWPd0 and VWPw0, respectively.…”

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confidence: 99%

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

Hernández-Fontes

Esperança

Bárcenas

et al. 2019

Water

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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.

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Section: Freeboard Exceedancementioning

confidence: 99%

Section: Green Water Kinematicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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

Hernández-Fontes

Esperança

Bárcenas

et al. 2019

Water

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“…Measuring the water surface elevations in two-dimensional (2D) hydrodynamic experiments is of importance in several types of studies regarding coastal [1][2][3][4][5] and ocean [6][7][8][9][10] engineering applications. The main reason is that they are very useful in the development of analytical and numerical approaches, particularly for validation purposes.…”

Section: Introductionmentioning

confidence: 99%