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Journal article

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

By Velte, Clara Marika1,2; Hansen, Martin Otto Laver1,2; Meyer, Knud Erik1,2; Fuglsang, Peter3

From

Fluid Mechanics, Department of Mechanical Engineering, Technical University of Denmark1

Department of Mechanical Engineering, Technical University of Denmark2

LM Glasfiber A/S3

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.

Language: English
Publisher: International Institute of Informatics and Cybernetics
Year: 2009
Pages: 92-96
ISSN: 16904532 and 16904524
Types: Journal article
ORCIDs: Velte, Clara Marika , Hansen, Martin Otto Laver and Meyer, Knud Erik
Keywords

Airfoil Communication. Mass media Du 91-W2-250 Profile Information technology P87-96 Separation Control Stereoscopic Piv T58.5-58.64 Vortex Generators

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