Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session F16: Aerodynamics: Unsteady Effects II
8:00 AM–9:57 AM,
Monday, November 19, 2018
Georgia World Congress Center
Room: B303
Chair: Karen Mulleners, École Polytechnique Fédérale de Lausanne
Abstract ID: BAPS.2018.DFD.F16.2
Abstract: F16.00002 : The effect of steady shear on the aerodynamic performance of an airfoil at low Reynolds number*
8:13 AM–8:26 AM
Presenter:
David Olson
(Michigan State University)
Authors:
David Olson
(Michigan State University)
Ahmed Naguib
(Michigan State University)
Manoochehr Koochesfahani
(Michigan State University)
The aerodynamics of steady airfoils in uniform flow has received considerably more attention than that of airfoils operating in a non-uniform flow. The current research experimentally investigates, using direct force measurements, the effect of shear in a steady approach freestream on the aerodynamic forces acting on a NACA 0012 airfoil over the angle of attack range of ±25°, and a chord Reynolds number range of 6×103 to 3×104. The uniform freestream case is compared with two different shear rates at each Reynolds number. There is an asymmetric effect of mean shear on the aerodynamic forces with regards to angle of attack. While some observed effects of shear and shear rate are consistent at different Reynolds numbers, other observations change with Reynolds number.
*This work was supported by AFOSR award number FA9550-15-1-0224.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.F16.2
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