A computational investigation is carried out to study the effect of oscillations on vortex generation and vorticity flux for flow over a deforming arc airfoil. The flow is laminar, incompressible, and two-dimensional at Re = 10,000. The computations are performed using the finite-volume method and a deforming mesh. The vorticity flux is evaluated on the surface of the airfoil. A variety of flow features are observed. Boundary layer flows, vortical structures, rolling vortices, and vortex layers are all present and have some degree of influence on the aerodynamic characteristics of the arc airfoil. Tangential pressure gradient on the surface and tangential acceleration of the airfoil are local sources of vorticity generation, and they result in the flux of vorticity from airfoil into fluid.
Vortex Generation in Low-Speed Flow Over an Oscillating and Deforming Arc Airfoil
Manuscript received January 17, 2012; final manuscript received August 19, 2012; published online December 21, 2012. Assoc. Editor: Z. C. Zheng.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Molki, M., and Sattari, N. (December 21, 2012). "Vortex Generation in Low-Speed Flow Over an Oscillating and Deforming Arc Airfoil." ASME. J. Fluids Eng. January 2013; 135(1): 011102. https://doi.org/10.1115/1.4023075
Download citation file:
- Ris (Zotero)
- Reference Manager