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A Computational Fluid Dynamics Analysis of an Offshore Multipurpose Platform Under Wave Effects

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Hernandez Escobar, Alejandra ULiège
Promotor(s) : Rigo, Philippe ULiège
Academic year : 2022-2023 • Permalink : http://hdl.handle.net/2268.2/18254
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Title : A Computational Fluid Dynamics Analysis of an Offshore Multipurpose Platform Under Wave Effects
Translated title : [es] Análisis de dinámica de fluidos computacional de estructura de una plataforma multiusos sometida a los efectos del oleaje
Author : Hernandez Escobar, Alejandra ULiège
Advisor(s) : Rigo, Philippe ULiège
Language : English
Number of pages : 93
Keywords : [en] Blue Growth Farm, Multipurpose Platform, Floating Offshore Wind Turbine, Wave-Energy Coverter, Aquaculture, Computational Fluid Dynamics, FoamStar, OpenFOAM.
Discipline(s) : Engineering, computing & technology > Multidisciplinary, general & others
Research unit : LHEEA, École Centrale de Nantes, France
Name of the research project : Blue Growth Farm
Target public : Researchers
Professionals of domain
Student
Institution(s) : Université de Liège, Liège, Belgique
École Centrale de Nantes, Nantes, France
Degree: Master : ingénieur civil mécanicien, à finalité spécialisée en "Advanced Ship Design"
Faculty: Master thesis of the Faculté des Sciences appliquées

Abstract

[en] This project aims to bring a new perspective to the line of research in ocean engineering,
particularly for the design and analysis of multipurpose platforms. This is to be achieved by
analyzing some parameters on the Blue Growth Farm platform to contribute to the design
and assessment process from a numerical point of view. This type of structure plays a fun-
damental role in the initiatives towards the efficient use of the marine environment for clean
sources to supply the ever-increasing energy and food demand. Moreover, they try to combine
different mechanisms and systems to ensure maximum utilization of the ocean’s space and re-
sources. The proposed research includes three work fronts: first, the analysis of the platform’s
quasi-static behavior through the implementation of numerical simulations in transient states
without the influence of waves to evaluate how changes in the computational domain and spa-
tial discretization affect the results. Second, the proposal of a methodology for regular and
irregular wave generation in a numerical wave tank when implementing wave-generation and
absorption models. Third, the set-up and discussion around wave-structure interaction sim-
ulations considering the moored platform under the influence of regular and irregular waves
This is to be achieved by means of the finite volume method coupled with the in-house library
FoamStar, which is based on OpenFOAM-5 and has similar capabilities to the InterFoam and
Waves2Foam solvers. This work is framed within the Blue Growth Farm project within the
framework of the European Union’s Horizon 2020 research and innovation program. Thus,
the present research aims to present the second attempt to validate the experimental results
from the BGF project with the use of numerical simulations. The aim is that the guideline
into the software environment and its particularities allows future researchers to evaluate and
assess the design of offshore structures towards the final goal of a successful recovery of energy
and food to avoid or reduce undesirable effects in the marine environment.


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  • Hernandez Escobar, Alejandra ULiège Université de Liège > Master ing. civ. méc. (EMSHIP+)

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  • Total number of views 50
  • Total number of downloads 74










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