Resonant behaviour of an oscillating wave energy converter in a channel
By Emiliano Renzi, Frédéric Dias. Journal of Fluid Mechanics, 2012
149 citations recorded by the source corpus.
Abstract A mathematical model is developed to study the behaviour of an oscillating wave energy converter in a channel. During recent laboratory tests in a wave tank, peaks in the hydrodynamic actions on the converter occurred at certain frequencies of the incident waves. This resonant mechanism is known to be generated by the transverse sloshing modes of the channel. Here the influence of the channel sloshing modes on the performance of the device is further investigated. Within the framework of a linear inviscid potential-flow theory, application of Green’s theorem yields a hypersingular integral equation for the velocity potential in the fluid domain. The solution is found in terms of a fast-converging series of Chebyshev polynomials of the second kind. The physical behaviour of the system is then analysed, showing sensitivity of the resonant sloshing modes to the geometry of the device, which concurs in increasing the maximum efficiency. Analytical results are validated with available numerical and experimental data.
Subfields: Computational Mechanics, Ocean Engineering, Oceanography
View Paper: https://www.semanticscholar.org/paper/5dba20d6cffb090a566395a8b0b128481a274945
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In Computational Mechanics
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Citations in the corpus
- Hydrodynamics of the oscillating wave surge converter in the open ocean (2012, methodology): “Figure 5: Behaviour of (a) exciting torque ratio and (b) capture factor ratio between the the channel model of Renzi and Dias [11] and the open ocean model of §2, versus the period of the incident wave.”