Inviscid Simulations of Interacting Flags and Falling Sheets
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Abstract
We present a fluid dynamics video showing simulations of flexible bodies flapping and falling in an inviscid fluid. Vortex sheets are shed from the trailing edges of the bodies
according to the Kutta condition. For interacting flags, a sampling of synchronous and asynchronous
states are shown. For falling flexible sheets, the basic behavior is a repeated series
of accelerations to a critical speed at which the sheet buckles, and rapidly
decelerates, shedding large vortices. Examples of persistent circling,
quasi-periodic flapping, and more complex patterns are shown.
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We acknowledge support from NSF-DMS Grant 0810602
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2009-10-07T18:34:53Z
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Flexible; Inviscid; Falling; Flapping; Vortex sheet
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Government Document
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video/moving image