It consists in an energetic archipelago where various devices for exploiting marine renewable energy can coexist in a modular way. 2, pp.A new concept of energy HUB in the Mediterranean Sea has been recently proposed by National Research Council of Italy. McCartney, "Floating breakwater design", J. The authors look forward to presenting the results at the NCK Days and are open for future collaborations. It is foreseen that the floating breakwater has potential as a stand-alone solution for shoreline protection, but also as a coupled module to reduce wave drift loads on larger floating structures (e.g., floating islands). The additional roughness had little effect on the wave attenuation performance, but it did reduce the motions of the floater through an increased hydrodynamic damping. The effect of additional surface roughness, representing, e.g., the effects of a grass or shellfish cover, was also tested. Compared to existing designs, the new breakwater design shows a more favourable balance between net wave loads on the structure and wave attenuation. The breakwater is especially effective in attenuating relatively high waves, that are more likely to break, and relatively short waves, which are reflected. Tests show that the breakwater reduces the incident wave energy by 40 to 80%. Finally, the design was tested in MARIN's shallow water wave basin.įigure : Waves breaking over the new floating breakwater design during scale model tests. Next, a mooring layout was designed for shallow water conditions using wave diffraction and time domain simulation software. Within the project, first the floater was optimised through computational fluids dynamics (CFD) simulations. The floating breakwater was therefore designed in the form of a parabolic beach that enforces incident waves to break. An effective way to dissipate wave energy is wave breaking. In order to reduce the net hydrodynamics loads on the structure, the incident wave energy needs to be dissipated rather than reflected. The floater was designed for wave conditions typical for inland lakes or estuaries. Within the present project, a new floating breakwater concept characterised by low hydrodynamic loads was developed. Disadvantages of are that their efficiency is typically limited for longer waves and that it is challenging to design a floating breakwater that is effective for a broad range of wave conditions. Compared to fixed breakwaters, advantages of floating breakwaters include their applicability in more challenging environments (deep water, poor foundation), their reduced environmental impacts (minimum interference with water circulation and fish migration, minimum bottom disturbance, minimum visual intrusion), and their flexibility (can relatively easily be re-arranged). Wave-attenuating breakwaters, which can be either fixed or floating, attenuate incident wave energy by means of wave reflection and/or wave dissipation through friction and wave breaking. The attenuation of waves is essential to secure maritime operations and to protect coastal regions against erosion. You need JavaScript enabled to view it.Ģ Wageningen Marine Research, This email address is being protected from spambots. 2 Deltares, This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. de Wilde 1ġ MARIN, This email address is being protected from spambots.
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