Abstract
In recent years, many wind farms, which mean groups of wind turbines installed in each site, are introduced globally. In wind farms, energy deficit occurs when the downstream wind turbine operates in wakes generated by upstream wind turbines. Especially in large wind farms, it may occur that the overlap of some wakes and it forms complex flow field due to the wake interference. Therefore, it is important to propose the wake model that can consider the overlap of the wake in order to arrange wind turbines optimally in wind farms. In this study, overlapped wakes are simulated by consideration of viscous diffusion and compared with the experimental results to clarify the wake interference effect.
