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Viscous damping forces on oscillating cylinders
AbstractTheoretical descriptions have been derived for the fluid force on a sinusoidally vibrating cylinder. The descriptions were obtained by applying perturbation expansion techniques to the Navier-Stokes equations based on small amplitude-to-radius ratio and large vibratory Reynolds number , where ω is frequency of vibration and ν is kinematic viscosity. By developing solutions for higher-order terms in the perturbation expansion involving ϵ, information was obtained on the behaviour of the hydrodynamic force as ϵ increases. Results derived, supplemented with experimental evidence, indicate that the hydrodynamic damping force changes rather abruptly from viscous damping as described by Stokes, to much larger quadratic fluid drag at .
Viscous damping forces on oscillating cylinders
AbstractTheoretical descriptions have been derived for the fluid force on a sinusoidally vibrating cylinder. The descriptions were obtained by applying perturbation expansion techniques to the Navier-Stokes equations based on small amplitude-to-radius ratio and large vibratory Reynolds number , where ω is frequency of vibration and ν is kinematic viscosity. By developing solutions for higher-order terms in the perturbation expansion involving ϵ, information was obtained on the behaviour of the hydrodynamic force as ϵ increases. Results derived, supplemented with experimental evidence, indicate that the hydrodynamic damping force changes rather abruptly from viscous damping as described by Stokes, to much larger quadratic fluid drag at .
Viscous damping forces on oscillating cylinders
Brouwers, J.J.H. (Autor:in) / Meijssen, T.E.M. (Autor:in)
Applied Ocean Research ; 7 ; 118-123
01.01.1985
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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