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We present a fluid dynamics video showing simulations of flexible bodiesflapping and falling in an inviscid fluid. Vortex sheets are shed from thetrailing edges of the bodies according to the Kutta condition. For interactingflags, a sampling of synchronous and asynchronous states are shown. For fallingflexible sheets, the basic behavior is a repeated series of accelerations to acritical speed at which the sheet buckles, and rapidly decelerates, sheddinglarge vortices. Examples of persistent circling, quasi-periodic flapping, andmore complex trajectories are shown.

Inviscid Simulations of Interacting Flags and Falling Sheets