Comparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions

The decks of oil-extracting platforms could be damaged by great wave impact loads under harsh ocean conditions. Our understanding of the pressure distribution characteristics under the deck, especially those influenced by columns, is incomplete. A series of experiments are carried out to study the...

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Autores principales:	Gangjun Zhai, Ting Zhou, Zhe Ma, Nianxin Ren, Jingjie Chen, Hee-min Teh
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	wave-induced pressure deck columns dutfoam Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/720f46da3b404021b479519bacc185c2
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spelling	oai:doaj.org-article:720f46da3b404021b479519bacc185c22021-12-01T14:40:59ZComparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions1994-20601997-003X10.1080/19942060.2021.1999858https://doaj.org/article/720f46da3b404021b479519bacc185c22021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/19942060.2021.1999858https://doaj.org/toc/1994-2060https://doaj.org/toc/1997-003XThe decks of oil-extracting platforms could be damaged by great wave impact loads under harsh ocean conditions. Our understanding of the pressure distribution characteristics under the deck, especially those influenced by columns, is incomplete. A series of experiments are carried out to study the spatial and instantaneous distribution of the impact pressure generated by regular waves acting on the deck, and two cases are considered: a flat plate (FP for short) and a plate with four vertical columns (CP for short). Three-dimensional numerical simulations using a modified wave generating tool are conducted and compared to experimental data. Both compressible and incompressible flow solvers are applied to further quantitatively analyse the effect of air compressibility on impacting forces. The results show marked changes in both the pressure distribution scatter under the deck and the magnitude of the impact pressure when comparing the two cases. It has been demonstrated that run-up along the columns can cause intense localized pressure on the deck, and a close relationship exists between this increased pressure and fluid velocity. Additionally, the preliminary results showed that the phase compressibility increases the peak pressure compared with that of an incompressible solver, and the former matches the experimental measurements better.Gangjun ZhaiTing ZhouZhe MaNianxin RenJingjie ChenHee-min TehTaylor & Francis Grouparticlewave-induced pressuredeckcolumnsdutfoamEngineering (General). Civil engineering (General)TA1-2040ENEngineering Applications of Computational Fluid Mechanics, Vol 15, Iss 1, Pp 1932-1953 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	wave-induced pressure deck columns dutfoam Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	wave-induced pressure deck columns dutfoam Engineering (General). Civil engineering (General) TA1-2040 Gangjun Zhai Ting Zhou Zhe Ma Nianxin Ren Jingjie Chen Hee-min Teh Comparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions
description	The decks of oil-extracting platforms could be damaged by great wave impact loads under harsh ocean conditions. Our understanding of the pressure distribution characteristics under the deck, especially those influenced by columns, is incomplete. A series of experiments are carried out to study the spatial and instantaneous distribution of the impact pressure generated by regular waves acting on the deck, and two cases are considered: a flat plate (FP for short) and a plate with four vertical columns (CP for short). Three-dimensional numerical simulations using a modified wave generating tool are conducted and compared to experimental data. Both compressible and incompressible flow solvers are applied to further quantitatively analyse the effect of air compressibility on impacting forces. The results show marked changes in both the pressure distribution scatter under the deck and the magnitude of the impact pressure when comparing the two cases. It has been demonstrated that run-up along the columns can cause intense localized pressure on the deck, and a close relationship exists between this increased pressure and fluid velocity. Additionally, the preliminary results showed that the phase compressibility increases the peak pressure compared with that of an incompressible solver, and the former matches the experimental measurements better.
format	article
author	Gangjun Zhai Ting Zhou Zhe Ma Nianxin Ren Jingjie Chen Hee-min Teh
author_facet	Gangjun Zhai Ting Zhou Zhe Ma Nianxin Ren Jingjie Chen Hee-min Teh
author_sort	Gangjun Zhai
title	Comparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions
title_short	Comparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions
title_full	Comparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions
title_fullStr	Comparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions
title_full_unstemmed	Comparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions
title_sort	comparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/720f46da3b404021b479519bacc185c2
work_keys_str_mv	AT gangjunzhai comparisonofimpulsivewaveforcesonasemisubmergedplatformdeckwithandwithoutcolumnsandconsideringaircompressibilityeffectsunderregularwaveactions AT tingzhou comparisonofimpulsivewaveforcesonasemisubmergedplatformdeckwithandwithoutcolumnsandconsideringaircompressibilityeffectsunderregularwaveactions AT zhema comparisonofimpulsivewaveforcesonasemisubmergedplatformdeckwithandwithoutcolumnsandconsideringaircompressibilityeffectsunderregularwaveactions AT nianxinren comparisonofimpulsivewaveforcesonasemisubmergedplatformdeckwithandwithoutcolumnsandconsideringaircompressibilityeffectsunderregularwaveactions AT jingjiechen comparisonofimpulsivewaveforcesonasemisubmergedplatformdeckwithandwithoutcolumnsandconsideringaircompressibilityeffectsunderregularwaveactions AT heeminteh comparisonofimpulsivewaveforcesonasemisubmergedplatformdeckwithandwithoutcolumnsandconsideringaircompressibilityeffectsunderregularwaveactions
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Comparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions

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