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 M14: Aerodynamics: General
8:00 AM–9:57 AM,
Tuesday, November 20, 2018
Georgia World Congress Center
Room: B301
Chair: Vibhav Durgesh, California State University, Northridge
Abstract ID: BAPS.2018.DFD.M14.5
Abstract: M14.00005 : Aerodynamic Performance of NACA-0012 Airfoil at Low Reynolds Numbers in Wake of Bluff Body
8:52 AM–9:05 AM
Presenter:
Vibhav Durgesh
(California State University, Northridge, University of Idaho)
Authors:
Vibhav Durgesh
(California State University, Northridge, University of Idaho)
Rodrigo Padilla
(California State University, Northridge)
Hamid Johari
(Cal State Univ - Northridge)
The aerodynamic performance of airfoils is adversely impacted when operating in a bluff-body wake. This investigation focused on understanding the impact of larger-scale structures on the aerodynamic performance of the NACA-0012 airfoil when operating in the wake of a rectangular bluff body. The measurements for this study were performed in the water tunnel facility with a Reynolds number of 40,000. A 6-axis force/torque transducer was used for measuring force and moment on the airfoil, and Particle Image Velocimetry was used to quantify the inflow velocity field. The results indicated that there is a significant reduction in lift coefficients with an increase in the drag coefficients experienced by the airfoil when operating in the wake of bluff body. Moreover, the vortex shed by the bluff body also impacts the lift force spectra, showing a correlation between the observed flow structures and instantaneous load on the airfoil.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.M14.5
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