Efficient calculation of hydrodynamic properties of OWC-type
devices
D. V. Evans & R. Porter, 1997, Journal of Offshore
Mechanics and Artic Engineering, 119(4) pp.210-218.
A simple model of an OWC-type wave-energy device is used to illustrate
a powerful accurate method for computing the hydrodynamic coefficients
when sharp edges are present. The device consists simply of a vertical
partially-immersed circular cylinder open at either end, with power
being extracted by constricting the flow of the air trapped in the
cylinder above the internal free surface. The method involves the
use of the theory of pressure distributions for OWC devices and the
hydrodynamical coefficients are computed using an accurate Galerkin
method which preserves the reciprocity relations.
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