Abstract
Motion-dependent fluid forces acting on a tube array were measured as a function of excitation frequency, excitation amplitude, and flow velocity. Fluid-damping and fluid-stiffness coefficients were obtained from measured motion-dependent fluid forces as a function of reduced flow velocity and excitation amplitude. The water channel and test setup provide a sound facility for obtaining key coefficients for fluidelastic instability of tube arrays in crossflow. Once the motion-dependent fluid-force coefficients have been measured, a reliable design guideline, based on the unsteady flow theory, can be developed for fluidelastic instability of tube arrays in crossflow.
Keywords
StiffnessTube (container)MechanicsFluid dynamicsMaterials sciencePhysicsComposite material
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Publication Info
- Year
- 2008
- Type
- paratext
- Citations
- 0
- Access
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S.S. Chen,
Siyuan Zhu,
J.A. Jendrzejczyk
(2008).
Fluid damping and fluid stiffness of tube arrays in crossflow.
.