publication . Other literature type . Article . 2014

Dynamic Stall Vortex Formation Of Oa-209 Airfoil At Low Reynolds Number

Aung Myo Thu; Jeon, Sang Eon; Byun, Yung Hwan; Park, Soo Hyung;
Open Access English
  • Published: 02 Jan 2014
  • Publisher: Zenodo
Abstract
The unsteady flow field around oscillating OA-209 airfoil at a Reynolds number of 3.5×105 were investigated. Three different reduced frequencies were tested in order to see how it affects the hysteresis loop of an airfoil. At a reduced frequency of 0.05 the deep dynamic stall phenomenon was observed. Lift overshooting was observed as a result of dynamic stall vortex (DSV) shedding. Further investigation was carried out to find out the cause of DSV formation and shedding over airfoil. Particle image velocimetry (PIV) and CFD tools were used and it was found out that dynamic stall separation (DSS), which is separated from leading edge separation (LES) and trailing...
Subjects
free text keywords: Airfoil Flow, CFD, PIV, Dynamic Stall, Flow Separation.
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Zenodo
Other literature type . 2014
Provider: Datacite
ZENODO
Article . 2014
Provider: ZENODO
Zenodo
Other literature type . 2014
Provider: Datacite
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