Aerodynamic and mechanical system modeling of a vertical axis wind turbine (VAWT)

Placide Jaohindy (1) , François Garde (1) , Alain Bastide (1)

1 PIMENT - Physique et Ingénierie Mathématique pour l'Énergie, l'environnemeNt et le bâtimenT

The Savonious rotor is a slow running vertical axis wind turbine (VAWT) which gets stabilized after a certain period of functioning. This work aims to assess the results of an aerodynamic study concerning a Savonious rotor. The computational fluid dynamics (CFD) is a technique used to solve the airflow around the wind turbine rotor. In this paper, the turbulence models standard k-ε and shear stress transport (SST) k-co are the turbulences models. A three-dimensional study of the problem has been conducted. Firstly, the moment of static forces acting on the rotor blades have been compared to with experimental results. Secondly, the integration of the equation of motion of the Savonious rotor with one degree of freedom (1-DOF) rigid body dynamics model. Implicit schemes for unsteady Euler equations have been used to perform dynamic simulation.

Mots clés: 1-DOF; aerodynamic modeling; aerodynamics; Airflow; blades; CFD; computational fluid dynamics; Computational modeling; Mathematical model; mechanical system modeling; Numerical models; rigid body dynamics; Rigid-rotor; rotor blades; rotors; Savonious rotors; shear stress transport; shear turbulence; standard k-ε turbulence models; static forces; Torque; VAWT; vertical axis wind turbines; wind turbines

Domaines: Sciences de l'ingénieur [physics]

Placide Jaohindy, François Garde, Alain Bastide. Aerodynamic and mechanical system modeling of a vertical axis wind turbine (VAWT). 2011 International Conference on Electrical and Control Engineering (ICECE), Nov 2011, Yichang, China. pp.5189--5192, ⟨10.1109/ICECENG.2011.6058214⟩. ⟨hal-00918236⟩