Fluid Forces on a Flexible Circular Cylinder in Vortex-Induced Vibrations
| Autor: | Ricardo Romero-Méndez, G. Mejía-Rodríguez, C. Monreal-Jiménez, G. Gutiérrez-Urueta, F. Oviedo-Tolentino |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
02 engineering and technology Flow pattern 01 natural sciences 010305 fluids & plasmas Vortex Physics::Fluid Dynamics Vibration Lift (force) 020303 mechanical engineering & transports 0203 mechanical engineering Particle tracking velocimetry Vortex-induced vibration Drag 0103 physical sciences Atomic physics Order of magnitude |
| Zdroj: | Recent Advances in Fluid Dynamics with Environmental Applications ISBN: 9783319279640 |
| Popis: | In this work fluid forces acting on a flexible circular cylinder in Vortex-Induced Vibrations (VIV) were studied. An experimental campaing was conducted at low mass-damping ratio (\(\mathrm {m_{cil}^{*}\zeta }\) = 0.126) covering the entire lock-in region. The dynamic response of the cylinder was computed using the Particle Tracking Velocimetry technique on the cylinder free end tip. Drag and lift coefficients (\(C_{D}\) and \(C_{L}\)) were determined using the experimental data from the cylinder response in a spring-mass-damping model. Results show that \(C_{L}\) is one order of magnitude greater than \(C_{D}\). Strong cylinder oscillations are associated with a flow pattern showing two vortex center lines corresponding mainly at the upper end of the initial region. |
| Databáze: | OpenAIRE |
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