NDLI: U-Oscillating Water Column in Random Waves: Modelling and Performances

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Malara, Giovanni Arena, Felice
Copyright Year	2013
Abstract	This paper deals with the analytical modelling of an U-Oscillating Water Column (U-OWC). It is shown that this device can be adequately described by a nonlinear equation of motion including hydrodynamic memory effects. The excitation of the system, the added mass and the retardation function are derived by approximating the solution of a pertinent initial boundary value problem via eigen-function expansions of the (linear) velocity potential. Next, the performance of the system is investigated in random waves by relying on Monte Carlo simulations. The excitation of the system is synthesized from a given power spectral density. Then, the nonlinear equation of motion is numerically integrated. Pertinent statistical measures are estimated for assessing the efficiency of the U-OWC in exploiting sea wave energy. In this regard, the parameters show that the device can absorb most part of the incident wave energy. Further, the device can work in safe conditions even in quite rough sea states.
Sponsorship	Ocean, Offshore and Arctic Engineering Division
File Format	PDF
ISBN	9780791855423
DOI	10.1115/OMAE2013-10923
Volume Number	Volume 8: Ocean Renewable Energy
Conference Proceedings	ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering
Language	English
Publisher Date	2013-06-09
Publisher Place	Nantes, France
Access Restriction	Subscribed
Subject Keyword	U-owc Wave energy converter Rewec Monte carlo simulation Analytical modelling Water Simulation Modeling Waves
Content Type	Text
Resource Type	Article

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