Self-Similarity and helical symmetry in vortex generator flow simulations


Autoria(s): Fernández Gámiz, Unai; Velte, Clara M.; Réthoré, Pierre-Elouan; Sørensen, N. N.
Data(s)

03/03/2016

03/03/2016

2014

Resumo

According to experimental observations, the vortices generated by vortex generators have previously been observed to be self-similar for both the axial (u(z)) and azimuthal (u(circle minus)) 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.

Identificador

Science of Making Torque from wind 2012 2014 555 : (2014) Article ID 012036

http://hdl.handle.net/10810/17496

10.1088/1742-6596/555/1/012036

Idioma(s)

eng

Publicador

IOP Publishing

Relação

http://iopscience.iop.org/article/10.1088/1742-6596/555/1/012036/meta

Direitos

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd

info:eu-repo/semantics/openAccess

Palavras-Chave #boundary-layer #separation
Tipo

info:eu-repo/semantics/article