CFD Simulation and Dynamic Stall Study of a Vertical Axis Wind Turbine

This study builds up a simulation model, viaAnsys/Fluent, to investigate the aerodynamics of an HRotor,one type of Vertical Axis Wind turbines (VAWT).The approach used in this paper is based on Reynoldsaveraged Navier-Stoke (RANS) model in a twodimensional scheme. A sliding mesh technique isemployed to handle the rotation of the wind turbine. Aphysical transient rotor-stator model was used to capturechange in flow field at a particular time step. Arealizable k turbulence model was used to modelturbulent features of the flow. Developed model caneffectively predict aerodynamic performance of a verticalaxis wind turbine. Finally, to understand aerodynamicphenomena around rotor blades namely dynamic stall, theflow visualization is performed for Tip Speed Ratio oftwo (TSR).

کلیدواژه ها:

Vertical Axis Wind Turbine (VAWT) ، HRotor ، Computational Fluid Dynamics (CFD) ، DynamicStall ، Turbulence model