In-line forces on oscillating bodies in a fluid flow.

Abstract
An experimental investigation was performed to study the in-line forces acting on oscillating bluff bodies -a sphere, a cylinder and a disc- in a fluid flow. The energy dissipations calculated with fluid resistance were well correlated by the following correlation regardless of body shape over the whole range investigated. E2/3fv=E2/3f+E2/3v where Efv, Ef and Ev are energy dissipations for the oscillating body in a fluid flow, for the stationary body in a fluid flow and for the oscillating body in a liquid at rest.

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