Waltzing, Jérémie
[UCL]
Chatelain, Philippe
[UCL]
Duponcheel, Matthieu
[UCL]
In the context of the fight against climate warming, renewable energies are called to play an increasing role in the energy mix in order to reduce the greenhouse gases emissions. In particular wind energy is part of the solution. The classical horizontal wind turbines are the most developed but are facing some challenges. The vertical axis wind turbines are a possible alternative which can be explored. In order to explore the behaviour of vertical axis wind turbines, this master thesis focuses on the development of an actuator cylinder method for vertical axis wind turbines. The objective of this method is to ally an acceptable computational cost with precision and good approach to the turbulence simulation. The developed actuator cylinder method is coupled with a Large Eddy Simulation code to provide a full overview of the behaviour of the wind turbine wake. The results of the simulation in terms of aerodynamics and wake of the vertical axis wind turbine are analysed and compared with those of the vortex particles mesh method and of the double-multiple stream tube method. The results of the three methods are close to each other in terms of angle of attack and forces coefficients over a revolution of the wind turbine. Considering the wake, the actuator cylinder results are clearly more stable for medium and high tip-speed ratio.


Bibliographic reference |
Waltzing, Jérémie. Development of an actuator surface method for vertical axis wind turbines. Ecole polytechnique de Louvain, Université catholique de Louvain, 2020. Prom. : Chatelain, Philippe ; Duponcheel, Matthieu. |
Permanent URL |
http://hdl.handle.net/2078.1/thesis:23059 |