Fernandez, U.4; Velte, Clara Marika5; Réthoré, Pierre-Elouan1; Sørensen, Niels N.1
1 Department of Wind Energy, Technical University of Denmark2 Fluid Mechanics, Department of Wind Energy, Technical University of Denmark3 Aeroelastic Design, Department of Wind Energy, Technical University of Denmark4 University of the Basque Country5 Department of Mechanical Engineering, Technical University of Denmark
According to experimental observations, the vortices generated by vortex generators have previously been observed to be self-similar for both the axial (uz) and azimuthal (u) velocity profiles. Further, the measured vortices have been observed to obey the criteria for helical symmetry. This is a powerful result, since it reduces the highly complex flow to merely four parameters. In the present work, corresponding computer simulations using Reynolds-Averaged Navier-Stokes equations have been carried out and compared to the experimental observations. The main objective of this study is to investigate how well the simulations can reproduce the physics of the flow and if the same analytical model can be applied. Using this model, parametric studies can be significantly reduced and, further, reliable simulations can substantially reduce the costs of the parametric studies themselves.
Proceedings of Torque 2012, the Science of Making Torque From Wind, 2012
Main Research Area:
The science of Making Torque from Wind 2012European Academy of Wind Energy : The Science of Making Torque from Wind