Use of CFD Model for vertical wind extrapolation in complex terrain

摘要

In this study, a wind resource assessment was performed on the An Suidhe Wind Farm site which is located in a forested and complex terrain in Scotland. The modeling has been done with the CFD software Meteodyn WT, using a fine resolution grid and activating a forest model. Results have been compared with on site measurements thanks to the availability of multiple met masts. As sites for wind farm development increasingly extend into areas of complex terrain, wind turbine hub heights are becoming greater. Vertical extrapolation of the wind with height will have an influence on the wind speed and thus on energy production. Furthermore, the uncertainties on the wind speed estimations are higher due to the presence of forests.