The leading edge vortex in flexible wing propulsion

Mysa, RC and Venkatraman, K (2017) The leading edge vortex in flexible wing propulsion. In: 17th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2017, 25 June 2017-28 June 2017, Como.

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Abstract

The elasto-dynamics coupled with the flow dynamics of the flapping flexible wing affects the propulsive performance. The formation, growth, and transport of the leading edge vortex plays a major role in the low frequency regime of oscillation of the flapping wing. This in turn influences the differential pressure distribution along the flexible foil. The spatial and temporal kinematics of the foil is dependent on this differential pressure distribution. And the spatial phase relation between the differential pressure distribution, foil kinematics, and base input excitation determine the propulsive performance of the oscillating flexible foil. We perform both potential and viscous flow numerical experiments to examine this coupling between the vorticity and the elastodynamics of the oscillating flexible foil to illustrate the mechanisms that are responsible for generating thrust.

Item Type:	Conference Paper
Publication:	17th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2017
Publisher:	International Forum on Aeroelasticity and Structural Dynamics (IFASD)
Additional Information:	The copyright for this article belongs to International Forum on Aeroelasticity and Structural Dynamics (IFASD).
Keywords:	Aerodynamics; Aeroelasticity; Elastic waves; Kinematics; Oscillating flow; Pressure distribution; Propulsion; Structural dynamics; Vortex flow; Wings, Differential pressures; Flapping wing; Flow-structure interaction; Leading-edge vortices; Numerical experiments; Propulsive performance; Swimming/flying; Vortex dynamics, Flexible wings
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	27 Jul 2022 04:43
Last Modified:	27 Jul 2022 04:43
URI:	https://eprints.iisc.ac.in/id/eprint/74667

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