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Matteo Zangrandi
This thesis concerns flows over complex terrains and their interaction with a wind farm. The study can be divided in two parts: the first one is mainly focused on simulations on a sinusoidal tridimensional roughness chosen to model the complex terrain varying the streamwise and spanwise wavelength of the geometry. Six different cases have been analyzed at low and high Reynolds number in order to characterize the flow. Simulations at high Reynolds number are then been used as precursor for LES simulations on a wind farm. Results show mean velocity profiles, stresses and 2D correlations
The second part analyzes the interaction of the flow coming from the precursor with a simple wind farm. Results are analyzed in terms of power recovery of the last rows of the wind farm and correlations of streamwise velocity.