Aerodynamics and Aeroacoustics of Two HAWT Array; Numerical Studies Using LES and IDDES

In spite of the significant developments in harvesting the wind energy, wind turbine poses significant aerodynamics challenges associated with the complex fluid dynamics such as wake dynamics, flow-tower interactions, blade-wake interactions, etc. The present studies concern the aerodynamics and aeroacoustics studies of the wind turbine. The computational studies are performed using the large-eddy simulation (LES) approach. The simulations were performed for a Reynolds number, Re = 1.2 x 10⁵based on the NACA0012 airfoil chord and free-stream velocity. The results show that the LES approach capture very well the flow physics associated with the wind turbine.