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Hydrodynamic studies of floating structures: Comparison of wave-structure interaction modelling

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Hydrodynamic studies of floating structures : Comparison of wave-structure interaction modelling. / Sheng, Wanan; Tapoglou, Evdokia; Ma, Xiandong; Taylor, C. James; Dorrell, Robert M.; Parsons, Daniel R.; Aggidis, George.

In: Ocean Engineering, Vol. 249, 110878, 01.04.2022.

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Sheng, Wanan ; Tapoglou, Evdokia ; Ma, Xiandong ; Taylor, C. James ; Dorrell, Robert M. ; Parsons, Daniel R. ; Aggidis, George. / Hydrodynamic studies of floating structures : Comparison of wave-structure interaction modelling. In: Ocean Engineering. 2022 ; Vol. 249.

Bibtex

@article{f7c5b982da86472598e283ba16f9c264,
title = "Hydrodynamic studies of floating structures: Comparison of wave-structure interaction modelling",
abstract = "Current panel methods for wave-structure interactions employ the potential flow theory, which provide fast, reliable and relatively accurate predictions for the marine structures, and now some open source packages, NEMOH and HAMS, are available. In this research, the relative utility and performance of NEMOH and HAMS is compared with the well-known, state-of-art software, WAMIT. To bring focus to these comparisons, this research is based on three different floating structures: the truncated cylinder; the truncated cylinder with heave plate; and a novel multi-axis TALOS wave energy converter. To make the comparison more useful, this research investigates the incomplete and overlapped panels for the simple cylinder, to examine whether the respective code can handle these and still provide a meaningful solution. The comparisons may help us to understand whether the incomplete and/or overlapped panels can be used for simplifying the numerical modelling of those very complicated marine structures. From the comparisons, it can be seen the open source software, NEMOH and HAMS, both could produce very good results for the simple single marine structure, but also exhibit different capacities in dealing with more complicated marine structures. Specifically, HAMS could handle the thin structures and the overlapped panels effectively as WAMIT.",
keywords = "WAMIT, NEMOH, HAMS, Wave-structure interaction, Free surface green function, Panel method",
author = "Wanan Sheng and Evdokia Tapoglou and Xiandong Ma and Taylor, {C. James} and Dorrell, {Robert M.} and Parsons, {Daniel R.} and George Aggidis",
year = "2022",
month = apr,
day = "1",
doi = "10.1016/j.oceaneng.2022.110878",
language = "English",
volume = "249",
journal = "Ocean Engineering",
issn = "0029-8018",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Hydrodynamic studies of floating structures

T2 - Comparison of wave-structure interaction modelling

AU - Sheng, Wanan

AU - Tapoglou, Evdokia

AU - Ma, Xiandong

AU - Taylor, C. James

AU - Dorrell, Robert M.

AU - Parsons, Daniel R.

AU - Aggidis, George

PY - 2022/4/1

Y1 - 2022/4/1

N2 - Current panel methods for wave-structure interactions employ the potential flow theory, which provide fast, reliable and relatively accurate predictions for the marine structures, and now some open source packages, NEMOH and HAMS, are available. In this research, the relative utility and performance of NEMOH and HAMS is compared with the well-known, state-of-art software, WAMIT. To bring focus to these comparisons, this research is based on three different floating structures: the truncated cylinder; the truncated cylinder with heave plate; and a novel multi-axis TALOS wave energy converter. To make the comparison more useful, this research investigates the incomplete and overlapped panels for the simple cylinder, to examine whether the respective code can handle these and still provide a meaningful solution. The comparisons may help us to understand whether the incomplete and/or overlapped panels can be used for simplifying the numerical modelling of those very complicated marine structures. From the comparisons, it can be seen the open source software, NEMOH and HAMS, both could produce very good results for the simple single marine structure, but also exhibit different capacities in dealing with more complicated marine structures. Specifically, HAMS could handle the thin structures and the overlapped panels effectively as WAMIT.

AB - Current panel methods for wave-structure interactions employ the potential flow theory, which provide fast, reliable and relatively accurate predictions for the marine structures, and now some open source packages, NEMOH and HAMS, are available. In this research, the relative utility and performance of NEMOH and HAMS is compared with the well-known, state-of-art software, WAMIT. To bring focus to these comparisons, this research is based on three different floating structures: the truncated cylinder; the truncated cylinder with heave plate; and a novel multi-axis TALOS wave energy converter. To make the comparison more useful, this research investigates the incomplete and overlapped panels for the simple cylinder, to examine whether the respective code can handle these and still provide a meaningful solution. The comparisons may help us to understand whether the incomplete and/or overlapped panels can be used for simplifying the numerical modelling of those very complicated marine structures. From the comparisons, it can be seen the open source software, NEMOH and HAMS, both could produce very good results for the simple single marine structure, but also exhibit different capacities in dealing with more complicated marine structures. Specifically, HAMS could handle the thin structures and the overlapped panels effectively as WAMIT.

KW - WAMIT

KW - NEMOH

KW - HAMS

KW - Wave-structure interaction

KW - Free surface green function

KW - Panel method

U2 - 10.1016/j.oceaneng.2022.110878

DO - 10.1016/j.oceaneng.2022.110878

M3 - Journal article

VL - 249

JO - Ocean Engineering

JF - Ocean Engineering

SN - 0029-8018

M1 - 110878

ER -