Presentation Description: Turbine interaction effects are one of the most significant variables impacting the energy estimate of a wind farm. In the last two years, the industry has attempted to tackle the problem of turbine interaction by breaking it into wakes and blockage, but analysts have neglected the intrinsic relationship between these two factors. This presentation aims to investigate the phenomenon of redistribution of energy inside a wind farm, focusing specifically on the so-called blockage effect. By using a holistic view that wake and blockage are closely related, this presentation challenges the general assumption that the blockage effect always results in a loss of energy.
The investigation of the turbine interaction phenomena was done with RANS CFD, and the work was compared against two novel engineering models. Previously published papers have focused on how wind speed slows downs as it approaches the first row of turbines in a wind farm, and our study confirms this phenomenon. However, our research also investigates what happens with the wind speed in other parts of the wind farm and how energy is redistributed inside the park that would otherwise be counted as lost potential energy.
Methodology: Power point slides including animations on how turbine interactions change as result of layout configuration.