Evaluation of the Performance of Vortex Generators on the DU 91-W2-250 Profile using Stereoscopic PIV

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Abstract

Stereoscopic PIV measurements investigating the effect of Vortex Generators on the lift force near stall and on glide ratio at best aerodynamic performance have been carried out in the LM Glasfiber wind tunnel on a DU 91-W2-250 profile. Measurements at two Reynolds numbers were analyzed; Re=0.9·10^6 and 2.4·10^6. The results show that one can resolve the longitudinal vortex structures generated by the devices and that mixing is created close to the wall, transferring high momentum fluid into the near wall region. It is also seen that the vortex generators successfully can obstruct separation near stall.
Original languageEnglish
Title of host publication WMSCI 2008:12th World Multi-Conference on Systemics, Cybernetics and Informatics
Volume2
Publication date2008
Pages263-267
ISBN (Print)978-1-934272-32-9
Publication statusPublished - 2008
EventInternational Symposium on Energy, Informatics and Cybernetics : Focus Symposium in the 12th World Multiconference on Systemics, Cybernetics and Informatics (WMSCI 2008) - Orlando, Florida
Duration: 1 Jan 2008 → …
Conference number: 4

Conference

ConferenceInternational Symposium on Energy, Informatics and Cybernetics : Focus Symposium in the 12th World Multiconference on Systemics, Cybernetics and Informatics (WMSCI 2008)
Number4
CityOrlando, Florida
Period01/01/2008 → …

Keywords

  • Vortex Generators
  • Separation Control
  • Stereoscopic PIV
  • DU 91-W2-250 Profile and Airfoil

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