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Hydrodynamic efficiency of partially immersed caissons supported on piles
The efficiency of the breakwater, which consists of caissons supported on two or three rows of piles, was studied using physical models. The efficiency of the breakwater is presented as a function of the transmission, reflection and the wave energy dissipation coefficients. Regular waves with wide ranges of wave heights and periods and constant water depth were used. Different characteristics of the caisson structure and the supporting pile system were also tested. It was found that, the transmission coefficient (kt) decreases with increasing the relative breakwater draft D/L, increasing the relative breakwater width B/h, and decreasing the piles gap-diameter ratio G/d. It is possible to achieve kt values less than 0.25 when D/L greater-than or equal to 0.1. The reflection coefficient takes the opposite trend especially when D/L less-than or equal to 0.15. The proposed breakwater dissipates about 10-25% of the incident wave energy. Also, simple empirical equations are developed for estimating the wave transmission and reflection. In addition, the proposed breakwater model is efficient compared with other floating breakwaters.
Hydrodynamic efficiency of partially immersed caissons supported on piles
The efficiency of the breakwater, which consists of caissons supported on two or three rows of piles, was studied using physical models. The efficiency of the breakwater is presented as a function of the transmission, reflection and the wave energy dissipation coefficients. Regular waves with wide ranges of wave heights and periods and constant water depth were used. Different characteristics of the caisson structure and the supporting pile system were also tested. It was found that, the transmission coefficient (kt) decreases with increasing the relative breakwater draft D/L, increasing the relative breakwater width B/h, and decreasing the piles gap-diameter ratio G/d. It is possible to achieve kt values less than 0.25 when D/L greater-than or equal to 0.1. The reflection coefficient takes the opposite trend especially when D/L less-than or equal to 0.15. The proposed breakwater dissipates about 10-25% of the incident wave energy. Also, simple empirical equations are developed for estimating the wave transmission and reflection. In addition, the proposed breakwater model is efficient compared with other floating breakwaters.
Hydrodynamic efficiency of partially immersed caissons supported on piles
Hydrodynamischer Wirkungsgrad von teilweise eingetauchten, von Pfählen abgestützten, Senkkästen
Rageh, O.S. (author) / Koraim, A.S. (author) / Salem, T.N. (author)
Ocean Engineering ; 36 ; 1112-1118
2009
7 Seiten, 21 Quellen
Article (Journal)
English
Hydrodynamic Efficiency of Partially Immersed Caissons Supported on Piles
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