Arrangement for concentrating sea waves
First Claim
1. A system for concentrating water wave energy, said system comprising an off-shore grid-like means for transforming substantially rectilinear fronts of incident water waves into substantially arch-like water wave fronts with concentrated wave energy in a common central area spaced from said grid-like means, said grid-like means comprising a structure formed of a series of interacting water wave stopping and/or delaying elements arranged substantially transversely of a primary direction of propagation of said incident water waves, and said elements being relatively dimensioned such that elements and spacings therebetween in a central portion of said series of elements have larger dimensions in the longitudinal direction of said series than elements and spacings therebetween remote from said central portion.
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Abstract
An arrangement for concentrating sea waves, includes a grid-like structure of stopping and/or delaying elements adapted to influence the amplitude and/or phase of the waves and located in such positions in the water that the elements in interaction with the incident sea waves form an interference pattern which gives a concentration of the wave energy in a limited area (concentration area). When the wave energy is to be utilized for power production, the grid-like element structure is designed to give a concentration of the wave energy in a concentration area located in the short-range field of the element structure. Preferably the elements in the structure are mainly situated in front of the concentration area with respect to the dominant wave incident directions. Moreover, the element structure may have an extension (aperture) which is substantially larger than the wave length of the dominant waves at the location.
32 Citations
12 Claims
- 1. A system for concentrating water wave energy, said system comprising an off-shore grid-like means for transforming substantially rectilinear fronts of incident water waves into substantially arch-like water wave fronts with concentrated wave energy in a common central area spaced from said grid-like means, said grid-like means comprising a structure formed of a series of interacting water wave stopping and/or delaying elements arranged substantially transversely of a primary direction of propagation of said incident water waves, and said elements being relatively dimensioned such that elements and spacings therebetween in a central portion of said series of elements have larger dimensions in the longitudinal direction of said series than elements and spacings therebetween remote from said central portion.
Specification