CFD modeling of vertical-axis wind turbine wake interaction

Since wind turbines placed in farms need to minimize their footprint on the ground, effects of wake must be considered. Placement optimization, turbine spacing, and direction rotation are known affect performance vertical-axis (VAWTs). However, rigorous numerical modeling methodologies that investigate influence these characteristics lacking, especially case large turbines. The goal this study is analyze configurations might enhance power production VAWT using two-dimensional CFD models based Star CCM+ package. novelty work farm for very This important because much more performant than small have a high coefficient. Results show simulations adequately capture with multiple VAWTs. In general, if second rotor spaced 10 diameters downstream first rotor, effect less significant. Furthermore, specific configuration five VAWTs investigated shows 20% increase output compared same number operating isolation.