Wave Induced Motions of a Floating Mega Island

Otto, William; Waals, Olaf; Bunnik, Tim; Ceneray, Coline

doi:10.1007/978-981-13-8743-2_9

Cited by 7 publications

(4 citation statements)

References 4 publications

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“…Experience here was gained with side-by-side offloading simulations, see Bunnik (2009). With this approach, a good similarity with the results from model tests has been obtained as shown in Otto et al (2019).…”

Section: Description Of Simulationssupporting

confidence: 60%

Conceptual Design of a Modular Floating Multi-Purpose Island

Drummen

Olbert²

2021

Front. Mar. Sci.

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The design of a modular floating multi-purpose island inherently involves interaction within a group with a large range of backgrounds such as engineering, architecture, sociology, climate modeling, and more. A heuristic design approach was adopted for future island developers to make a first conceptual design. Four major design considerations were distinguished to discretize the design space: module size, module shape, module principle, and module connection and mooring. For each consideration a set of evaluation criteria were defined. This article describes the heuristic conceptual design procedure that was applied to the design of a modular floating island for offshore energy, offshore accommodation, aquafarming, and offshore transport and logistics. Two reference installation scenarios with a different respective focus of functionality, located in the North Sea and in the Mediterranean Sea, were created as a basis for the design. The first step of the design procedure consisted of a participatory process involving stakeholders and experts to rate design options for each category of design considerations based on the evaluation criteria and with regard to the installation scenario. As a result, all design configurations could be associated with an overall rating. In a second step, the most favorable designs identified during the participatory design procedure were investigated numerically to assess force distribution throughout the island when exposed to wave and current loads. The numerical results indicate that contrary to initial estimates during Phase 1, wave forces on an island consisting of quadrangular modules do not significantly exceed those experienced by triangular base shapes. As quadrangular modules can be shown to provide a higher Ground-Space-Index, this gives them a distinct advantage. As a result of the design process for this application, a barge-like, square structure with a base size of 45 m was chosen as the base module.

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Section: Description Of Simulationssupporting

confidence: 60%

Conceptual Design of a Modular Floating Multi-Purpose Island

Drummen

Olbert²

2021

Front. Mar. Sci.

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“…Wang et al (2020) provide knowledge about connected modular structures and fluid-structure interaction, considering wind, waves and other forces. Otto et al (2020) provide relevant insight in terms of a model of a floating island that consists of interconnected pontoons, and its behaviour. "Varying global design parameters such as draft, assembly shape, module shape and module size" will be considered in the authors' future work (p. 188).…”

Section: Relevant Literaturementioning

confidence: 99%

Maritime Transformable Area Systems

Sredic

2023

International Journal of Applied Industrial Engineering

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Transformable area systems (TASs) offer new possibilities for sustainable factory planning and development, notably as regards maritime structures. This is of relevance to factories of the future and could constitute a major influence in future factory planning and operation (i.e., the way in which factories are planned, implemented, transformed, relocated, used, and managed). Floating pontoon islands with solar systems already exist, and so much more is possible with similar but more complex structures. This article explains the basics of the TAS concept, assesses its potential, and discusses the future possibilities. It concludes that lack of knowledge and awareness about TASs and their potential is holding back their application in practice. Omnipresent short-term thinking and short-term profit expectations are further hurdles that are limiting the further development of TASs at present. TASs could nevertheless contribute to the improved functioning, sustainability, and future viability of factories, other structures, and their development.

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“…When facing these challenges, sea space utilization through the development of coastal floating structures becomes one potential solution. In recent years, a few innovative floating structures, such as floating solar farms [1] and floating cities [2,3], have been developed or proposed. These floating structures can not only supply renewable energy and seafood, but also create infrastructures for human activities on the sea.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Floating Breakwater in Special Configurations for Protecting Nearshore Infrastructures

Zhang

Magee

2021

JMSE

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This paper investigates the effectiveness of floating breakwaters consisting of two barges (L-shape), three barges (U-shape), four barges (barge frame), and conventional single floating breakwater. The floating breakwaters of different spatial layouts have sheltered internal gaps/moonpools when compared to their conventional counterparts. The motions of these floating breakwaters and their effectiveness in wave transmission and motion reduction of the protected floating bodies are evaluated. The study is conducted based on a subsystem of a floating hydrocarbon storage facility that combines a floating breakwater with two floating tanks, studied previously. Numerical models based on linear potential flow theory are built for these floating breakwaters with and without the floating tanks. The numerical models of the barge frame are validated through laboratory experiments, and the dipole damping lids to reduce the resonant fluid motions in the gaps/moonpools are calibrated with experimental results. The L-shape floating breakwater is found effective in reducing wave transmissions without the presence of the floating tanks, while the barge frame is the most effective in the motion reduction of the floating tanks. In addition, significant fluid resonant motions are identified for all investigated floating breakwaters, including the conventional one. Orienting the structure obliquely can improve the performance of the floating breakwaters of special configurations, especially the barge frame. The results and findings show the importance of considering the protected floating structures in the analysis when designing floating breakwaters for many types of marine structures, including floating fish farms and floating cities in coastal waters.

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Wave Induced Motions of a Floating Mega Island

Cited by 7 publications

References 4 publications

Conceptual Design of a Modular Floating Multi-Purpose Island

Conceptual Design of a Modular Floating Multi-Purpose Island

Maritime Transformable Area Systems

Effectiveness of Floating Breakwater in Special Configurations for Protecting Nearshore Infrastructures

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