Extracting energy from Vortex-Induced Vibrations: A parametric study

Here, Vortex-Induced Vibrations (VIVs) of a circular cylinder are analyzed as a potential source for energy harvesting. To this end, VIV is described by a one-degree-of-freedom model where fluid forces are introduced from experimental data from forced vibration tests. The influence of some influenci...

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Bibliographic Details
Published in:Applied mathematical modelling 2012-07, Vol.36 (7), p.3153-3160
Main Authors: Barrero-Gil, Antonio, Pindado, Santiago, Avila, Sergio
Format: Article
Language:English
Subjects:
Computational fluid dynamics
Damping
Efficiency
Energy harvesting
Fluid flow
Fluids
High Reynolds number
Mathematical models
Vortex-induced vibrations
Vortex-Induced-Vibration
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Summary:Here, Vortex-Induced Vibrations (VIVs) of a circular cylinder are analyzed as a potential source for energy harvesting. To this end, VIV is described by a one-degree-of-freedom model where fluid forces are introduced from experimental data from forced vibration tests. The influence of some influencing parameters, like the mass ratio m∗ or the mechanical damping ζ in the energy conversion factor is investigated. The analysis reveals that: (i) the maximum efficiency ηM is principally influenced by the mass-damping parameter m∗ζ and there is an optimum value of m∗ζ where ηM presents a maximum; (ii) the range of reduced velocities with significant efficiency is mainly governed by m∗, and (iii) it seems that encouraging high efficiency values can be achieved for high Reynolds numbers.
ISSN:0307-904X
DOI:10.1016/j.apm.2011.09.085