Simulation and control of wind turbine flows using vortex generators

In DTU's and LM Wind Power's wind tunnel, the project performed several measurements of the flow behind vortex generators (VG). The project proved that the induced vortices effectively counteract separation. The key result from the project is that it demonstrated that the vortices display helical symmetry. In future, the knowledge will be used to develop simple models for use in analytical and/ or numerical flow calculations for, for instance, blade profiles with VGs. The project also showed that they generally impact advantageously on intermittently separated flows. (Energy 10)