Publications de Sébastien Le Fouest

Data from: Optimal blade pitch control for enhanced vertical-axis wind turbine performance

Sébastien Le Fouest, Karen Ann J Mulleners

This directory contains open-source data obtained using a single-bladed H-type vertical-axis wind turbine prototype with individual blade pitching. This data results from the optimisation of the blade's pitching kinematics using a genetic algorithm at two ...

Zenodo2024

Optimal blade pitch control for enhanced vertical-axis wind turbine performance

Sébastien Le Fouest, Karen Ann J Mulleners

Vertical-axis wind turbines are great candidates to enable wind power extraction in urban and off-shore applications. Currently, concerns around turbine efficiency and structural integrity limit their industrial deployment. Flow control can mitigate these ...

Nature Research2024

Time scales of dynamic stall development on a vertical-axis wind turbine blade

Sébastien Le Fouest, Karen Ann J Mulleners, Daniel Marie Fernex

Vertical-axis wind turbines are excellent candidates to diversify wind energy technology, but their aerodynamic complexity limits industrial deployment. To improve the efficiency and lifespan of vertical-axis wind turbines, we desire data-driven models and ...

2023

Dynamic stall characterisation and control for vertical-axis wind turbines

Sébastien Le Fouest

According to the International Energy Agency, the global net-zero emissions objective requires the installed wind power capacity to increase 11-fold between 2020 and 2050. The scientific community has recently voiced concerns about the logistic feasibility ...

EPFL2023

Greenberg's Force Prediction for Vertical-Axis Wind Turbine Blades

Sébastien Le Fouest, Karen Ann J Mulleners, David Yefim Bensason

AMER INST AERONAUTICS ASTRONAUTICS2022

Strategy for diagnosing the degree of dynamic stall on a vertical-axis wind turbine blade

Sébastien Le Fouest, Karen Ann J Mulleners, David Yefim Bensason

Vertical axis wind turbines boast several advantages over their horizontal counterparts. Their development and large-scale installation has been limited due to their inherent aerodynamic complexity and in particular due to the occurrence of dynamic stall. ...

Amer Inst Aeronautics & Astronautics2022

Asymmetry of timescales, loads, and flow structures for a vertical-axis wind turbine blade undergoing dynamic stall

Sébastien Le Fouest, Karen Ann J Mulleners, David Yefim Bensason

Vertical-axis wind turbines have the potential to increase the share of primary energy from wind. The development of vertical-axis wind turbines for large-scale application has been limited by their self-starting capabilities and the occurrence of dynamic ...

Amer Inst Aeronautics & Astronautics2022

The dynamic stall dilemma for vertical-axis wind turbines

Sébastien Le Fouest, Karen Ann J Mulleners

Vertical-axis wind turbines (VAWT) are excellent candidates to complement traditional wind turbines and increase the total wind energy capacity. Development of VAWT has been hampered by their low efficiency and structural unreliability, which are related t ...

Pergamon-Elsevier Science Ltd2022

The dynamics and timescales of static stall

Sébastien Le Fouest, Karen Ann J Mulleners, Julien Dominique Claude Deparday

Airfoil stall plays a central role in the design of safe and efficient lifting surfaces. We typically distinguish between static and dynamic stall based on the unsteady rate of change of an airfoil’s angle of attack. Despite the somewhat misleading denotat ...

2021

Dynamic stall on an airfoil undergoing VAWT blade angle of attack variations

Sébastien Le Fouest, Karen Ann J Mulleners, Sabrina Henne

Vertical axis wind turbines have several attractive features in the context of energy production in urban areas, but the inherent aerodynamic complexity of the flow around them has challenged their development on a larger scale. They generally operate at l ...

2020