Journal article · Conference paper
Self-Similarity and helical symmetry in vortex generator flow simulations
University of the Basque Country1
Department of Mechanical Engineering, Technical University of Denmark2
Fluid Mechanics, Coastal and Maritime Engineering, Department of Mechanical Engineering, Technical University of Denmark3
Department of Wind Energy, Technical University of Denmark4
Aeroelastic Design, Department of Wind Energy, Technical University of Denmark5
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 (uӨ) 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.
Language: | English |
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Publisher: | IOP Publishing |
Year: | 2014 |
Pages: | 012036 (10pp) |
Proceedings: | The science of Making Torque from Wind 2012European Academy of Wind Energy : The Science of Making Torque from Wind |
ISSN: | 17426596 and 17426588 |
Types: | Journal article and Conference paper |
DOI: | 10.1088/1742-6596/555/1/012036 |
ORCIDs: | Velte, Clara Marika , Réthoré, Pierre-Elouan and Sørensen, Niels N. |