DAUC-Projects and partnerships

Ongoing or recent collaborative projects

The objective of the MOMENTA project is to improve the estimation of aero-elastic loads in a configuration which appears more and more frequently with the current wind farm layouts, the specific case of a wind turbine subjected to the wake turbulent features from another wind turbine (called latter Wake-Induced Turbulence). The project propose thus to provide an accurate description of two necessary aspects:
- the Wake-Induced Turbulence using original drone measurements (WP1, WIND INFLOW)
- the impact of this Wake-Induced Turbulence on aerodynamic loads using both wind tunnel measurements and CFD computations (WP2, AERODYNAMIC BLADE LOADS).
Then, these improved descriptions will be implemented in the aero-elastic wind turbine design solvers (WP3, AERO-ELASTIC SOLVERS) for a better estimation of aero-elastic loads. Due to the improvement of the Wake-induced Turbulence description (WP1), this project will also provide a first step towards optimized wind farm layouts in dense configurations, in terms of both energy yield and load reduction.

Investigator: LHEEA inter-team project (DAUC, METHRIC and EMO)
Coordinator: Caroline BRAUD (LHEEA-DAUC team)
Partners: PRISME, IFPEN, LA, VALEMO
 

The eParadise project objective is to bring two types of aerodynamic sensors to maturity for life time extension and noise reduction of today’s operating wind turbines, while maintaining (or even increasing) the energy production. The aerodynamic sensors, the eTellTale sensor developed by Mer Agitée and a wireless pressure sensor, are chosen to be easily embedded on the blade and robust. The ability of these sensors to detect states of the flow on the aerodynamic surface will be evaluated in wind tunnels using a 2D blade section (scale 1/10 and full scale) in severe conditions (gust and frost). These sensors will then be tested at full scale on a wind farm operated by VALOREM at Saint-Hilaire de Chaléons (Pays-de-loire). It must be emphasized that the wind turbine is already the subject of a structural monitoring from civil engineering researchers of GIS LIGERC. A full database will thus be available and used for interdisciplinarity emulation inside the wind energy team of GIS PERLE.

Investigator: LHEEA
Coordinator: Caroline BRAUD (LHEEA-DAUC team)
Partners: CSTB, MerAgitée, VALEMO
Funder: ADEME and Région Pays de la Loire

FLOATEOLE project illustrates the objective of the research lab in Hydrodynamics, Energetics and Atmospheric Environment (LHEEA) to contribute, through a multidisciplinary approach, to the optimization of floating wind turbines operation by studying the consequences of the wave/wind/structure coupling on the performance and durability of the wind energy converters subjected to harsh and non-deterministic operating conditions. The goal of the project is to combine wind tunnel and full-scale offshore experiments in order to characterize the wave influence on the aerodynamic behavior of the floating wind turbines and on their wake development.

Coordinator: Centrale Nantes/LHEEA
Funder: WEAMEC/Région Pays de la Loire
Partners: D-ICE/Idéol

> More information about this project: www.weamec.fr/en/blog/record_project/floateole/

The WAKEFUL project aims at studying the far-wake of a floating offshore wind turbine (FOWT) at full scale in real met-ocean conditions. The project takes benefit of a joint LiDAR experiment within VAMOS project gathering the University of Stuttgart, IDEOL and the LHEEA lab (Centrale Nantes – CNRS) around the characterization of the power curve, the close and the far wake of a floating wind turbine installed at the sea test site SEM-REV.
Project objectives: develop a measurement strategy by LiDAR from a floating platform, measure the unsteady wake of an offshore wind turbine, analyse existing wake models and propose improvements, measure the offshore wind resource.
Objectives of the LiDAR campaign at Penn-Avel: measure and develop understanding of the offshore wind resource, engage the first operational deployment of LiDAR in the marine environment, upgrade skills with a view to its deployment at sea.

Funding: WEAMEC (2019-2022)
Partners: LHEEA (coordinated by Boris Conan, DAUC, EMO & SEM-REV), the University of Stuttgart, IDEOL
> More informations about this project: https://www.weamec.fr/en/blog/record_project/wakeful/

A good understanding of floating offshore wind turbines is essential to decrease the uncertainties and risks – and thus the costs – of this very promising technology. The project “Validation, Measurement and Optimization of Floating Wind Energy” (VAMOS) addresses this challenge with a large-scale measurement campaign and a validation study. The knowledge gained will be used directly for the design of an improved turbine controller to enhance the dynamic behavior and reduce loads. In the long term, this will allow for lighter weight and cheaper turbine designs.

First co-funded German-French research project on floating wind energy

For the first time, a research project on floating wind energy is co-funded by the German Federal Ministry of Economics and Energy and the French Regional cluster West Atlantic Marine Energy Community.

Coordinator: Stuttgart Wind Energy (SWE)
Partners:  LHEEA, l'Institut pour la dynamique des fluides et la théorie des navires de l'Université technologique de Hambourg (TUHH), Sowento GmbH, et GL Garrad Hassan Deutschland GmbH, UL International GmbH et Ideol, en tant que partenaires associés.

MATRAC aims to improve knowledge of dynamics and optical properties of the marine aerosol in the coastal area in order to:

• better understand spatio-temporal variations of the particulate extinction coefficient.
• assess the impact of these variations on electro-optical radiation
• validate an extinction model operating on the basis of a small number of inputs

Means deployed: In-situ measurements (aerosols and micro-meteorology) and high-resolution modelling of atmospheric dynamics.
Objectives of the LIDAR campaign at Penn-Avel: Characterise offshore wind, at different distances from the coast, and assess the potential of LiDAR for measuring marine aerosols.
Financing: ANR ASTRID (2019 - 2021)
Partners: Mediterranean Institute of Oceanology (MIO, coordinator), LHEEA (Isabelle Calmet, DAUC and SEM-REV teams, in collaboration with TNO (Netherlands)), Interdisciplinary Centre for Nanosciences of Marseille (CINaM)

The wind upstream of the wind turbine rotor is highly unsteady and inhomogeneous (misalignment of the rotor in the wind, turbulence of the atmosphere, gust … etc) while blade are increasingly longer. Using Add-ons (systems installed a posteriori) on the blade for a dynamic adaptation of the aerodynamics to prevent load fluctuations is foreseen to be a significant improvement to increase wind turbine lifetime.This project will be realized with the equipment acquired as part of the ROTOR-OPTIM project.
Investigator: LHEEA
Coordinator: Caroline BRAUD (LHEEA-DAUC team)
Funder: WEAMEC
Partners: CSTB, MerAgitée

Increasing the life of wind turbines is one of the major areas of investigation faced by wind farm operators. A cause of premature aging often put forward is the accumulation of loads imposed by the strong shears upstream of the rotor due to a malfunction of the wind turbine or the atmosphere in which it operates. In order to limit the influence of these disturbances on the wind turbine, one of the solutions envisaged today is what is called "retroffiting" or the integration of adjustment systems commonly known as "add-ons". This involves modifying the aerodynamic surface of the blade a posteriori in order to improve its performances. This project concerns the equipment needed to build a "smart” add-on and the system necessary to characterize its behavior in a wind tunnel.
Investigator: LHEEA
Coordinator: Caroline BRAUD (LHEEA-DAUC team)
Partners: CSTB, MerAgitée

Thomas Potentier PhD on: "Evaluation de l'impact d'ajouts passifs sur les pales d'éolienne"
Funder: ENGIE-GREEN
PhD supervised by: C. Braud (LHEEA/DAUC) et E. Guilmineau (LHEEA/METHRIC)

Assessment of thermal stability - Evaluation de la stabilité thermique de l’atmosphère à partir de données terrain et de ré-analyse
Funder : ENERCON

Other collaborative projects

ANR SMARTEOLE (2015-2019)

Principal Investigator: LHEEA
Partners: IFPEN (IFP Energies nouvelles), LAAS (Laboratoire d'Analyse et d'Architecture des Systèmes), LHEEA, Engie Green, UPWIND SAS

ANR URBANTURB (2015-2018)

Analysis of the dynamical coupling between the URBAN canopy and the TURBulent atmospheric surface layer.
Principal Investigator: LHEEA
Partners: LML

CIFRE (2017-2020)

Characterisation of the aerodynamics of a sensor (e-penon) for the analysis and control of the turbulent flow over an aerodynamic surface
Funder: Entreprise Meragitée (ocean racing stable of Michel DESJOYEAUX)
PhD supervised by: C. Braud (LHEEA), F. Danbon (CSTB) et D. Voisin (Mer Agitée)
Partners: CSTB

ADEME EVA (2013-2016)

Water, vegetation, albedo : quantitative evaluation of the impact over the micro-climate, building energy consumption and exterior and interior comfort
Coordinator: IRSTV
Partners: CRENAU/Ensan, LaSIE/ULR, LHEEA/Centrale Nantes, Veolia

ANR VEGDUD (2010-2014)

Role of vegetation in the sustainable urban planning : study based on climatology, hydrology, energy management and ambiances
Coordinator: IRSTV
Partners: IRSTV (CERMA, LHEEA, IFSTTAR, LaSIE, LIENSs), CNRM/MétéoFrance, Ephyse/INRA, LRC/IRSN, CESBIO, LPGN/UN

Research contract (2017-2019)

Assessment of thermal stability - Evaluation de la stabilité thermique de l’atmosphère à partir de données terrain et de ré-analyse
Funder : ENERCON

Pays de la Loire Region  URBIO (2013-2016)

Urban biodiversity : toward an integrated approach of the eco-systemic services in urban areas
Coordinator: AgroCampus Ouest (Angers)
Partners: ESA, ONIRIS, IRSTV (CRENAU/Ensan, LHEEA/Centrale Nantes)

ADEME TIPEE (2013-2016)

Technological and Innovative Platform for Environmental Efficiency
Coordinator: IRSTV
Partners: CRENAU/Ensan, LaSIE/ULR, LHEEA/ECN

Région des Pays de la Loire EM2PAU (2008-2012)

Influence of micro-meteorology effect on the acoustic propagation within urban terrain
Coordinator: IFSTTAR
Partners: LAUM, LHEEA/Centrale Nantes

> Being among the founding members of the Research Institute for Sciences and Techniques of the City (IRSTV FR 2488), the DAUC group has strong partnerships with national labs and institutes:

• CRENAU (Ecole Nationale Supérieure d’Architecture de Nantes)
• CSTB
• LaSIE (Université de La Rochelle)
• IFSTTAR (LAE - Laboratoire d’acoustique environnementale et EE-Eau et Environnement)
• AgroCampus Ouest (Angers)
• IRSN (Laboratoire de Radioécologie, Octeville)

> The group also have collaborations with:

• CEREA (EDF R&D)
• CNRM/MétéoFrance
• EPHYSE (INRA, Bordeaux)
• LAAS (Laboratoire d'Analyse et d'Architecture des Systèmes)
• PRISME(Laboratoire Pluridisciplinaire de Recherche en Ingénierie des Systèmes et Mécanique Energétique)

> Main international partners:

• CESAM, Department of Environment and Planning, University of Aveiro, Portugal CESAM, Department of Environment and Planning, University of Aveiro, Portugal   
• Netherlands Organisation for Applied Scientific Research (TNO), Pays Bas
• Department of Mechanical & Materials Engineering, University of Western Ontario, London, Canada
• CEID, School of Engineering Science, Lappeenranta University of Technology, Lappeenranta, Finland
• Université de Tel Aviv, Israël