Scaling strategies for multi-purpose floating structures physical modeling: state of art and new perspectives

Ruzzo, Carlo; Muggiasca, Sara; Malara, Giovanni; Taruffi, Federico; Belloli, Marco; Collu, Maurizio; Li, Liang; Brizzi, Giulio; Arena, Felice

doi:10.1016/j.apor.2020.102487

Cited by 29 publications

(18 citation statements)

References 136 publications

(190 reference statements)

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“…The WindWaveFloat that intends to equip the WindFloat, a semisubmersible threecolumn floating platform, with different types of WECS, such as OWCs and point absorbers [38,40]. The BlueGrowthFarm, a project founded by the European Union that proposes a multifunctional platform with 10 MW wind turbines and several OWCs [41]. In 2012, it developed a prototype of a spar buoy in Narec and tested it at a scale of 1:16 [35].…”

Section: Multipurpose Platformsmentioning

confidence: 99%

Review of the Influence of Oceanographic and Geometric Parameters on Oscillating Water Columns

Juan

Valdecantos

Esteban

et al. 2022

JMSE

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Wave energy is one of the most powerful sources of energy on our planet, but its exploitation is difficult. Much current research on renewable energy is focused on how to harness ocean energy. However, wave energy converter (WEC) technology is still immature and how to reach high levels of efficiency is still unknown. In coming years, this field is likely to reach a high level of development, so it is important to continue research on the improvement of the performance of these devices. One of the most important wave energy converters is the oscillating water column (OWC). The main difficulty of OWCs is that they have to provide good rates of hydrodynamic efficiency for many different types of sea states (different periods, heights, wavelengths, etc.). The other big concern is the optimization of the geometric parameters of the device. This research paper is focused on these two big concerns: how oceanographic parameters affect the hydrodynamic behavior of an OWC and its geometric optimization. Different studies about how wave and geometric characteristics affect the performance of an OWC are reviewed and relationships between these and the hydrodynamic performance of an OWC are finally outlined and summed up.

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Section: Multipurpose Platformsmentioning

confidence: 99%

Review of the Influence of Oceanographic and Geometric Parameters on Oscillating Water Columns

Juan

Valdecantos

Esteban

et al. 2022

JMSE

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“…The system itself is actually characterized by a highly complex dynamics, given by the coexistence of several actions on the machine: firstly the incoming wave field and floatation, then the aerodynamics of the rotor and the effect of blade pitch on rotor forces and moments, finally the flexible dynamics of slender components like moorings, tower, blades, shafts. This statement is even reinforced when dealing with multipurpose offshore platforms, that in addition to be floaters for wind turbines are also hosting several other subsystems, like wave energy converters or aquaculture plants [1]. In this framework it is easy to understand how much it is difficult to build reliable numerical models able to take into account the coexistence of several and often nonlinear forcing actions.…”

Section: Introductionmentioning

confidence: 99%

“…In this framework the presented work is focused on the aerodynamic validation of a large scale floating wind turbine model built during the H2020 project "The Blue Growth Farm" [1] and deployed in a natural laboratory in the waters of Messina's strait, Italy, between February 2021 and January 2022. The model is a 1:15 reproduction of the 10 MW DTU reference wind turbine [2] scaled according to a performance matching procedure and installed on a floating multipurpose platform for aquaculture and wave energy production.…”

Section: Introductionmentioning

confidence: 99%

Experimental validation of the aero-servo design of a large-scale floating offshore wind turbine model

Taruffi

Carlo

Muggiasca

et al. 2022

J. Phys.: Conf. Ser.

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Offshore floating wind turbines are such complex systems from the point of view of global dynamics that numerical models are often insufficient in describing completely and correctly their behavior. In this framework large scale models deployed in a natural outdoor environment are a valid complement in understanding the real features of the system and in updating or validating codes. In the case of wind turbines adopting a large scale allows to better reproduce the aerodynamic behavior of the rotor. Objective of the present work is the validation of the aerodynamic design of a large-scale 1:15 model of the DTU 10 MW wind turbine deployed on a multipurpose floating platform, built in the framework of the Horizon 2020 project termed as “The Blue Growth Farm Project”. It is requested to assess the effective aerodynamic characteristics of the rotor so to understand if the physical design is well respecting the aerodynamic properties requested in the design phase. Particular care is put in the correct reproduction of the operating parameters as part of the assessment of the control system. For initial analysis a good compliance between design and physical model is found. Regarding the aerodynamic characteristics, a good agreement between the experimental Cp values and the numerical curves is observed. Overall, the physical rotor aerodynamic design is validated and the power controller steady-state performances are assessed.

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“…With increasing human population and rising sea level there is a scarcity for space on land for the people to live, grow food and harvest renewable energy. In search for solutions to this emerging threat, initiatives for spatial developments are shifting to the offshore environment, e.g., (Buck and Langan(eds), 2017;Wang et al, 2019Wang et al, , 2020Ang et al, 2020;Elliott et al, 2020;Ruzzo et al, 2021). The Space@Sea project is such an initiative, involving a conceptual study to develop a standardized floating solution providing offshore space (Flikkema and Waals, 2019).…”

Section: Introductionmentioning

confidence: 99%

Developing an Environmental Impact Assessment for Floating Island Applications

et al. 2021

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In the Space@Sea project a conceptual study is performed to develop standardized cost efficient floating modular islands with low environmental impact. As these floating modular islands are introduced for a purpose which is likely to determine the environmental impact, possible applications were considered: living, aquaculture, ports and logistics, and energy hub. The aim of this study is to develop a structured approach for Environmental Impact Assessments (EIAs) of floating modular islands and their applications as these are considered within the Space@Sea project. To contribute to the efficiency and sustainability of future floating island developments, early awareness of the likely environmental consequences is important and requires a solid knowledge base. To that end we recommend a screening approach to identify the main threats to the marine ecosystem and their potential impacts at the earliest (conceptual) stage of development. For each Space@Sea type of application, this screening approach should identify the main threats through an EIA that links critical pressures with sensitive ecosystem components. While conventional impact assessments only consider negative impacts, we also consider potential environmental benefits of floating islands. This not only to enhance more environmental-friendly designs but also to provide a balanced perspective which considers not only threats but also opportunities in future developments and implementation of floating islands and their applications.

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Scaling strategies for multi-purpose floating structures physical modeling: state of art and new perspectives

Cited by 29 publications

References 136 publications

Review of the Influence of Oceanographic and Geometric Parameters on Oscillating Water Columns

Review of the Influence of Oceanographic and Geometric Parameters on Oscillating Water Columns

Experimental validation of the aero-servo design of a large-scale floating offshore wind turbine model

Developing an Environmental Impact Assessment for Floating Island Applications

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