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Development of Vorticity over a Wall of Elastic Heaving Airfoils

T. Kurinami, M. Fuchiwaki, K. Tanaka, T. Nagata


The behavior of a vortex generated by a moving object subjected to vibration and fluidic noise has been investigated. The authors performed the PIV measurement for vortex flow in the vicinity of a wall of the elastic NACA0010. We clarified quantitatively the effect of elastic deformation to the developing process of vortices generated in the vicinity of a wall. The positive of second invariant of the velocity gradient tensor depends on the relative acceleration.

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Jones, K. D., et al., 1998. Experimental and computational investigation of the Knoller-Betz effect., AIAA J., Vol.36: 1240-1246

Lai, J. C. S., et al., 1999. Jet characteristics of a plunging airfoil., AIAA Journal, Vol.37: 1529-1537

Yongsheng, L., et al., 2003. Membrane Wing Aerodynamics for Micro Air Vehicle. Progress in Aerospace Science., Vol.39: 426-465

Heathcote, S., et al., 2007. Flexible Flapping Airfoil Propulsion at Low Reynolds Number. AIAA J., Vol.45: 1067-1079

Fuchiwaki, M., et al., 2009. Detailed Wake Structure behind an Elastic Airfoil. J. of Fluid Science and Technology, Vol.4: 391-400



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