Numerical Investigation of the Boundary Layer Control and Wind Turbine Power Production Enhancement Using Solid Vortex Generators (SVGs)

摘要

The aerodynamic behavior of blades equipped with solid vortex generators (SVGs) is analyzed by means of 3D RANS CFD simulations considering non-rotating and rotating cases. The presence of the SVGs is modeled by introducing the corresponding loading as extra source term in the momentum equations. Furthermore, taking into account that SVGs are applied in series of co- and counter-rotating layouts of small periodic span, one such periodic strip is modeled with either symmetry or cyclic side conditions. The model is first validated against existing wind tunnel measurements on non-rotating (fixed wing) configurations. Then, the rotating case is considered in which case the preservation of the total pressure in the spanwise direction is added.