LAUSR

ABSTRACT The present work aims to investigate the flow behaviour of the wind turbines placed in a complex region environment. The small-scale wind turbine models are compared to the flat terrain model. The study includes the influence of turbulence, topography and wake interaction. The experiments conducted in the wind tunnel to measure wind velocity profile using digital anemometer and particle image velocimeter. Experimental results are validated using Reynolds Averaged Navier Stokes simulations about the flow tests. The results show that the power output from the turbines increases due to flow acceleration by the hills. A stronger correlation have been found between the hill induced wake and turbulence present in the flow fields. Stronger the turbulence level in the wind tunnel, stronger the wake diffusion. A good agreement has been shown between numerical simulation and the experimental results; the results show that the hills promote rise to modulations of the wake due to wind turbines.