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.
E^2/3_fv=E^2/3_f+E^2/3_v
where E_fv, E_f and E_v 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.