Study on Slamming Pressure Characteristics of Platform under Freak Wave

Freak waves have great peak energy, short duration, great contingency, and strong nonlinear characteristics, and can cause severe damage to ships and marine structures. In this study, numerical simulations in conjunction with experimental tests are applied to study air gap response and wave slamming...

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Autores principales:	Fali Huo, Hongkun Yang, Zhi Yao, Kang An, Sheng Xu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	semi-submersible platform freak wave CFD air gap response wave slamming Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
Acceso en línea:	https://doaj.org/article/fd1ffdc9e5484ded9e8cb84724040c12
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spelling	oai:doaj.org-article:fd1ffdc9e5484ded9e8cb84724040c122021-11-25T18:04:54ZStudy on Slamming Pressure Characteristics of Platform under Freak Wave10.3390/jmse91112662077-1312https://doaj.org/article/fd1ffdc9e5484ded9e8cb84724040c122021-11-01T00:00:00Zhttps://www.mdpi.com/2077-1312/9/11/1266https://doaj.org/toc/2077-1312Freak waves have great peak energy, short duration, great contingency, and strong nonlinear characteristics, and can cause severe damage to ships and marine structures. In this study, numerical simulations in conjunction with experimental tests are applied to study air gap response and wave slamming loads of a semi-submersible offshore platform under a freak wave. A three-dimensional wave tank, which is created based on the computational fluid dynamics (CFD) method, is applied to study the hydrodynamic responses of a semi-submersible platform. The numerical model of the tank and offshore platform system are checked according to the experimental results. A typical freak wave is modelled in numerical wave tanks by the linear superposition method, and its significant wave height is 13.03 m. It is found that the freak wave is closely associated with the wave slamming. The appearance of the freak wave gives rise to a negative air, gap which appears on the side of the back wave surface at the bottom of the deck box, and considerable slamming pressure is generated. Furthermore, the wave run up at the junction of the column and the buoyancy tank is also seen due to the freak wave.Fali HuoHongkun YangZhi YaoKang AnSheng XuMDPI AGarticlesemi-submersible platformfreak waveCFDair gap responsewave slammingNaval architecture. Shipbuilding. Marine engineeringVM1-989OceanographyGC1-1581ENJournal of Marine Science and Engineering, Vol 9, Iss 1266, p 1266 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	semi-submersible platform freak wave CFD air gap response wave slamming Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
spellingShingle	semi-submersible platform freak wave CFD air gap response wave slamming Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Fali Huo Hongkun Yang Zhi Yao Kang An Sheng Xu Study on Slamming Pressure Characteristics of Platform under Freak Wave
description	Freak waves have great peak energy, short duration, great contingency, and strong nonlinear characteristics, and can cause severe damage to ships and marine structures. In this study, numerical simulations in conjunction with experimental tests are applied to study air gap response and wave slamming loads of a semi-submersible offshore platform under a freak wave. A three-dimensional wave tank, which is created based on the computational fluid dynamics (CFD) method, is applied to study the hydrodynamic responses of a semi-submersible platform. The numerical model of the tank and offshore platform system are checked according to the experimental results. A typical freak wave is modelled in numerical wave tanks by the linear superposition method, and its significant wave height is 13.03 m. It is found that the freak wave is closely associated with the wave slamming. The appearance of the freak wave gives rise to a negative air, gap which appears on the side of the back wave surface at the bottom of the deck box, and considerable slamming pressure is generated. Furthermore, the wave run up at the junction of the column and the buoyancy tank is also seen due to the freak wave.
format	article
author	Fali Huo Hongkun Yang Zhi Yao Kang An Sheng Xu
author_facet	Fali Huo Hongkun Yang Zhi Yao Kang An Sheng Xu
author_sort	Fali Huo
title	Study on Slamming Pressure Characteristics of Platform under Freak Wave
title_short	Study on Slamming Pressure Characteristics of Platform under Freak Wave
title_full	Study on Slamming Pressure Characteristics of Platform under Freak Wave
title_fullStr	Study on Slamming Pressure Characteristics of Platform under Freak Wave
title_full_unstemmed	Study on Slamming Pressure Characteristics of Platform under Freak Wave
title_sort	study on slamming pressure characteristics of platform under freak wave
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/fd1ffdc9e5484ded9e8cb84724040c12
work_keys_str_mv	AT falihuo studyonslammingpressurecharacteristicsofplatformunderfreakwave AT hongkunyang studyonslammingpressurecharacteristicsofplatformunderfreakwave AT zhiyao studyonslammingpressurecharacteristicsofplatformunderfreakwave AT kangan studyonslammingpressurecharacteristicsofplatformunderfreakwave AT shengxu studyonslammingpressurecharacteristicsofplatformunderfreakwave
_version_	1718411658451222528

Study on Slamming Pressure Characteristics of Platform under Freak Wave

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