ESRs

The 13 FLOAWER ESR alongside the Coordination team during the 3rd Training of the project (September 2021).
From right to the left, starting from the last row: Wessel van der Dejil (ESR11), Thomas Messmer (ESR10), Kutay Yilmazlar (ESR12), Xiaoming Ran (ESR4), Moritz Gräfe (ESR2), Daniel Hatfield (ESR3), Craig White (ESR13), Seung Yoon Han (ESR5), Telem Avidor (ESR1), Eva Melina Schmitt (ESR7), Victor Benifla (ESR8), Navid Belvasi (ESR6), Florent Jubé (Project Manager), Mariana Montero Montenegro (ESR9), Sandrine Aubrun (General Coordinator).

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Work-package: 4 - Wind Resource Assessment in Deep Waters
Research topic: Wind resource assessment in deep waters through space-distributed measurement systems
Host: Centrale Nantes (ECN)
Host Country: France
Home Country: France
Supervisors: Prof. Sandrine Aubrun and Dr. Yves Perignon
Duration: 24 months

Research programme:
1.    Wind resource characterization of the ECN offshore test site: SEM-REV;
2.    Relevance and reliability of the deployed instrumentation to assess the wind resource on the specific SEM-REV site;
3.    Relevance and reliability of the deployed instrumentation to assess the wind resource at other sites;
4.    A set of transfer functions between the different measurement systems in order to identify the best compromise between robustness, reliability and costs to assess wind resource in deep waters.

Planned secondments: University of Stuttgart (3 months) and EOLFI (3 months)

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Research topic:Assessing the measurements of offshore wind conditions using LiDAR on floating platforms for resource assessment and power curve verification
Work-package: 4 - Wind Resource Assessment in Deep Waters
Host: University of Stuttgart (USTUTT)
Host Country: Germany
Home Country: Germany
Supervisors: Prof. P.W. Cheng and Oliver Bischoff
Duration: 36 months

Research programme:
1.    General study of the advantages and disadvantages of different possibilities to measure wind conditions offshore with floating structures;
2.    Analytical comparison of different methods to measure wind conditions with a LiDAR from different floating platforms and positions (e.g. floating LiDAR, nacelle-based, transition piece based, floater based) for wind resource assessment and power curve determination;
3.    Development of new and extension of existing simulation environments for LiDAR measurements on floating structures performing wind field reconstruction;
4.    Verification of the simulation environment with real measurement data;
5.    Assessment of the uncertainties of LiDAR measurements on different floating structures.

Planned secondments: Fraunhofer IWES (3 months) and IDEOL (3 months)

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Research topic: Offshore wind resource at deep sea sites applying satellite data and numerical modelling
Work-package: 4 - Wind Resource Assessment in Deep Waters
Host: Technical University of Denmark, Wind Energy Department (DTU)
Host Country: Denmark
Home Country: Canada
Supervisor: Dr. Charlotte Bay Hasager
Duration: 36 months

Research programme:
1.    Handle floating LiDAR data, and correct for motion including ship-based LiDAR, such that wind climate can be obtained with limited uncertainty;
2.    Knowledge on the usability of satellite SAR winds at deep sea sites will be compared to numerical model results over 10 years, to estimate inter-annual variability. This result is important as measurement campaigns typically are much shorter;
3.    Evaluation of the advantages and limitations of numerical modelling versus satellite ocean winds and observations from floating buoy/ship-based LiDAR, to assess wind resource statistics, and to provide maps of potential resources at selected deep sea sites for demonstration.

Planned secondments: Fraunhofer IWES (3 months) and VORTEX (3 months)

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Research Topic: High-fidelity determination of wave load and load effects for floating wind turbine hulls subjected to severe wave conditions
Work-package: 5 – Advanced Floater Analysis
Host: Norwegian University of Science and Technology (NTNU)
Host Country: Norway
Home Country: China
Supervisors: Assoc. Prof. Erin Bachynski and Prof. Michael Muskulus
Duration: 36 months

Research programme:
1.    Development of numerical methods for determining highly nonlinear wave loads and load effects on floating offshore WTs;
2.    Improved engineering load models based on validated high-fidelity simulations. Validation will be carried out using experimental results obtained in the FLOAWER project or other ongoing international projects;
3.    Better understanding of long-term extrema for local structural design through use of improved engineering models.

Planned secondments: Centrale Nantes or University College of Cork (3 months) and GICON (3 months)

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Research Topic: Hydrodynamic analysis and numerical modelling of heave-plates dedicated to the design of floating wind turbines
Work-package: 5 – Advanced Floater Analysis
Host: Centrale Nantes (ECN)
Host Country: France
Home Country: South-Korea
Supervisors: Dr. Jean-Christophe Gilloteaux and Prof. David Le Touzé
Duration: 36 months

Research programme:
1.    Hydrodynamic database for various geometry, column-diameter/heave-plate diameter ratio and heave-plate depth;
2.    Improved engineering models for modelling heave-plates.

Planned secondments: Norwegian University of Science and Technology (3 months) and IDEOL (3 months)

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Research Topic: Advanced physical Modelling Methods for Floating wind turbines
Work-package: 5 – Advanced Floater Analysis
Host: University College of Cork (UCC)
Host Country: Ireland
Home Country:  Iran
Supervisors: Prof. Jimmy Murphy and Dr. Cian Desmond
Duration: 36 months

Research programme:
1.    Perform a set of high quality validation from physical testing of an elemental floating object;
2.    Perform a set of high quality validation data for a floating wind energy platform with both aerodynamic and hydrodynamic effects;
3.    LCOE analysis outputs.

Planned secondments: Centrale Nantes (3 months) and Aerodyn (3 months)

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Research Topic: Advanced design and optimized cost of mooring systems
Work-package: 5 – Advanced Floater Analysis and 7 - System Design to Reduce LCOE
Host: Norwegian University of Science and Technology (NTNU)
Host Country: Norway
Home Country: Germany
Supervisors: Prof. Michael Muskulus and Assoc. Prof. Erin Bachynski
Duration: 36 months

Research programme:
1.    A parametric cost model for different mooring system technologies, including sea bed anchors and complex multi-floater layouts;
2.    A methodology to evaluate mooring system reliability, taking into account uncertainties in wave- and current-induced mooring system dynamics and loads;
3.    A methodology for robust optimization of mooring systems with respect to performance constraints, system reliability and cost;
4.    A comprehensive guideline on mooring system design for floating WTs, to support industrial end-users and future research.

Planned secondments: University of Rostock (3 months) and Vicinay (3 months)

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Research Topic: Multi-Used design components for different kind of floating sub-structures
Work-package: 5 – Advanced Floater Analysis and 7 - System Design to Reduce LCOE
Host: University of Rostock (UROS)
Host Country: Germany
Home Country: France
Supervisors: Dr. Frank Adam and Prof. Uwe Ritschel
Duration: 36 months

Research programme:
1.    High-fidelity CFD mooring line analysis compared to a multi-body simulation approach to consider dynamic effects of inertia and viscous damping in the design;
2.    Multi-used structural components for different kind of floaters to reduce production and maintenance costs and in the end the LCOE;
3.    A comprehensive guideline on multi-used structural components on design for floating WTs, to support industrial end-users and future research.

Planned secondments: WAVEC (3 months) and GICON (3 months)

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Research Topic: Horizontal and vertical axis WT aerodynamic modeling and testing
Work-package: 6 – Dynamics of wind turbines
Host: Politecnico di Milano (POLIMI)
Host Country: Italy
Home Country: Costa Rica
Supervisors: Prof. Alessandro Croce and Dr. Stefano Cacciola
Duration: 36 months

Research programme:
1.    From high-fidelity to engineering aerodynamic models update (for VAWT and HAWT);
2.    Development of new wind turbine and wind farm control technologies and wind tunnel experimental campaign (for VAWT and HAWT);
3.    Development of advanced methods for WT monitoring and rotor imbalance detections and wind tunnel experimental tests (for VAWT and HAWT).

Planned secondments: CNR-INM (3 months) and Cartflow (3 months)

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Research Topic: Dynamics and interaction of floating turbines
Work-package: 6 – Dynamics of wind turbines
Host: University of Oldenburg (UOLD)
Host Country: Germany
Home Country: France
Supervisors: Prof. Joachim Peinke and Dr. Michael Hölling
Duration: 36 months
Research programme:
1.    Experimental investigations of a turbine array of model WTs mimicking floating motions exposed to stochastically realistic wind fields;
2.    Analysis of resulting turbine’s dynamic response;
3.    Development of a stochastic description of the overall floating WT system.

Planned secondments: Politecnico di Milano (3 months) and GICON (3 months)




 

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Research Topic: Ability of vertical axis wind turbines to be a competitive alternative to horizontal axis wind turbines for floating offshore applications
Work-package: 6 – Dynamics of wind turbines
Host: CNRS-LEGI (CNRS)
Host Country: France
Home Country: The Netherlands
Supervisors: Dr. Stéphane Barre and Assoc. Prof. Christophe Sicot
Duration: 36 months

Research programme:
1.    Have a fine mapping of the wake of the WT;
2.    Propose a simplified modeling of the wake in order to be able to simulate it in farm configurations;
3.    Validate the results obtained in wind tunnel by experiments on a floating system.

Planned secondments: Ecole Nationale Supérieure de Mécanique et d’Aérotechnique (3 months) and Hydroquest (3 months)

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Research Topic: Integrated design and LCOE minimization of horizontal and vertical axis wind turbines.
Work-package: 7 - System Design to Reduce LCOE
Host: Politecnico di Milano (POLIMI)
Host Country: Italy
Home Country: Turkey
Supervisors: Prof. Alessandro Croce and Assoc. Prof. Carlo Emanuele Dionigi Riboldi
Duration: 36 months

Research programme:
1.    Update of existing rotor/tower design tool with the platform sizing for offshore WTs;
2.    Update of existing LCOE mathematical models for design tools and reduction of the LCOE through an integrated design;
3.    Comparison between optimal horizontal axis and vertical axis configurations;
4.    Guidelines for future WT design.

Planned secondments: Norwegian University of Science and Technology (3 months) and EOLFI (3 months)

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Research Topic: System design to minimize the LCOE of Floating Offshore Wind
Work-package: 7 - System Design to Reduce LCOE
Host: WAVEC/Offshore Renewables (WAVEC)
Host Country: Portugal
Home Country: The United Kingdom
Supervisors: Dr. Jose Candido and Assoc. Prof. Luis Gato
Duration: 36 months

Research programme:
1.    Development of techno-economic model to assess FOW projects;
2.    Development of comprehensive cost database (for WTs, floating platforms, moorings, anchors and electric components and sub-systems);
3.    Delivery of system design that minimizes LCOE.

Planned secondments: Politecnico di Milano (3 months) and EOLFI (3 months)