Wave interaction with a rectangular long floating structure over flat bottom

Guo, Y.C.; Mohapatra, Soudamini; Soares, C. Guedes

doi:10.1201/9780429505294-72

Cited by 4 publications

(7 citation statements)

References 1 publication

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“…Therefore, in the present study, the main and new contributions compared with Guo et al (2018) and Islam et al (2019) are the 1) mathematical formulation associated with wave radiation by a three-dimensional floating rectangular box and the analytical expression for the radiational potentials (by adding finite structural width), 2) analytical expressions for the hydrodynamic coefficients, added mass, damping coefficients, and wave forces for the heave, sway and roll motions, 3) comparison between the present and the independent numerical BEM code based NEMOH simulations, 4) analysis of the wave forces and hydrodynamic coefficients on heave, sway, and roll motions for modes of oscillations, structural width, and comparison among them from the analytical solutions. Further, the results for the reflection and transmission coefficients for different values of structural width and drafts are presented and also analyzed.…”

Section: Article Highlightsmentioning

confidence: 89%

“…The MEFEM has been used in the study of the hydrodynamic interaction of floating rectangular structures due to its considerable accuracy and less use of computer memory and as well as processing time in three dimensions (Mohapatra and Guedes Soares, 2021;2022). Further, the series solutions using the eigenfunction expansion attend the convergence for the wave forces and hydrodynamic coefficients of a floating structure in two-dimensions and oblique wave cases (Bhattacharjee and Guedes Soares, 2011;Guo et al, 2018;Islam et al, 2019).…”

Section: Article Highlightsmentioning

confidence: 99%

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Analysis of Wave-Induced Forces on a Floating Rectangular Box with Analytical and Numerical Approaches

Mohapatra,

da Silva Bispo,

Guo

et al. 2024

J. Marine. Sci. Appl.

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A three-dimensional mathematical hydrodynamic model associated with surface wave radiation by a floating rectangular box-type structure due to heave, sway, and roll motions in finite water depth is investigated based on small amplitude water wave theory and linear structural response. The analytical expressions for the radiation potentials, wave forces, and hydrodynamic coefficients are presented based on matched eigenfunction expansion method (MEFEM). The correctness of the analytical results of wave forces is compared with the construction of a numerical model using the open-source boundary element method code NEMOH. In addition, the present result is compared with the existing published experimental results available in the literature. The effects of the different design parameters on the floating box-type rectangular structure are studied by analyzing the vertical wave force, horizontal wave force, torque, added mass, and damping coefficients due to the heave, sway, and roll motions, and the comparison analysis between the forces is also analyzed in detail. Further, the effect of reflection and transmission coefficients by varying the structural width and drafts are analyzed.

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Section: Article Highlightsmentioning

confidence: 89%

Section: Article Highlightsmentioning

confidence: 99%

Analysis of Wave-Induced Forces on a Floating Rectangular Box with Analytical and Numerical Approaches

Mohapatra,

da Silva Bispo,

Guo

et al. 2024

J. Marine. Sci. Appl.

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show abstract

“…In terms of research on the RTD coefficients of the influence of the breakwater width and draft on t cients when energy dissipation was ignored. [8][9][10][11]. for the needy practitioners, a closed-form formula h mission coefficient in deep water [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Differe tential flow theory, other scholars studied the influ and wave height on the performance of wave reflec the F-BW via experimental tests conducted in interm In terms of research on the RTD coefficients of an F-BW, some scholars have studied the influence of the breakwater width and draft on the reflection and transmission coefficients when energy dissipation was ignored. [8][9][10][11]. In order to provide some judgement for the needy practitioners, a closed-form formula has been created to predict the transmission coefficient in deep water [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Determination of Formulae for the Hydrodynamic Performance of a Fixed Box-Type Free Surface Breakwater in the Intermediate Water

Niu,

Chen,

et al. 2023

JMSE

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A two-dimensional viscous numerical wave tank coded mass source function in a computational fluid dynamics (CFD) software Flow-3D 11.2 is built and validated. The effect of the core influencing factors (draft, breakwater width, wave period, and wave height) on the hydrodynamic performance of a fixed box-type free surface breakwater (abbreviated to F-BW in the following texts) are highlighted in the intermediate waters. The results show that four influence factors, except wave period, impede wave transmission; the draft and breakwater width boost wave reflection, and the wave period and wave height are opposite; the draft impedes wave energy dissipation, and the wave height is opposite; the draft and wave height boost the horizontal extreme wave force; four influence factors, except the draft, boost the vertical extreme wave force. Finally, new formulas are provided to determine the transmission, reflection, and dissipation coefficients and extreme wave forces of the F-BW by applying multiple linear regression. The new formulas are verified by comparing with existing literature observation datasets. The results show that it is in good agreement with previous datasets.

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“…Rivera-Arreba [11] studied the dynamic response of the floating wind turbine subjected to wind and waves. On the other hand, Guo et al [12] used a linear wave theory to calculate the wave forces acting on the structure. In numerical simulations for waves acting on floating structures with moorings, mostly the mooring mechanisms were included and wave interferences were considered.…”

Section: Introductionmentioning

confidence: 99%

Mooring Drag Effects in Interaction Problems of Waves and Moored Underwater Floating Structures

Chen

Lee

2020

JMSE

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In contrast to either considering structures with full degrees of freedom but with wave force on mooring lines neglected or with wave scattering and radiation neglected, in this paper, a new analytic solution is presented for wave interaction with moored structures of full degrees of freedom and with wave forces acting on mooring lines considered. The linear potential wave theory is applied to solve the wave problem. The wave fields are expressed as superposition of scattering and radiation waves. Wave forces acting on the mooring lines are calculated using the Morison equation with relative motions. A coupling formulation among water waves, underwater floating structure, and mooring lines are presented. The principle of energy conservation, as well as numerical results, are used to verify the present solution. With complete considerations of interactions among waves and moored structures, the characteristics of motions of the structure, the wave fields, and the wave forces acting on the mooring lines are investigated.

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Wave interaction with a rectangular long floating structure over flat bottom

Cited by 4 publications

References 1 publication

Analysis of Wave-Induced Forces on a Floating Rectangular Box with Analytical and Numerical Approaches

Analysis of Wave-Induced Forces on a Floating Rectangular Box with Analytical and Numerical Approaches

Determination of Formulae for the Hydrodynamic Performance of a Fixed Box-Type Free Surface Breakwater in the Intermediate Water

Mooring Drag Effects in Interaction Problems of Waves and Moored Underwater Floating Structures

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