PROPOSING AND INVESTIGATING THE EFFICIENCY OF VERTICAL PERFORATED BREAKWATER [ READ ]
Mohammed Ibrahim, Hany Ahmed, Mostafa Abd Alall, A.S. Koraim
This study aims to propose two types of an innovate breakwater with an economic feasibility. The first type is consists of two vertical perforated walls, the first wall is permeable in lower part (porosity e =50%) and is impermeable in the upper part. The second wall is permeable in the upper part (porosity e =50%) and the lower part is impermeable. Between the two walls there is a horizontal slotted wall. The second type is the same construction as on the first type but without horizontal slotted wall. The results indicates that the hydrodynamic performance of the first type is better than that of the second type in the percentage of (10-15%) because of the presence of the horizontal slotted wall. The effect of wave force on the first model bigger than the second model in the rang (10-15%). The wave force on the proposed models increases with increasing the relative depth (d/L). The transmission coefficient (kt) decreases with increasing the relative depth (d/L). The reflection coefficient (kr) increases with increasing the relative depth (d/L).
Mohammed Ibrahim, Hany Ahmed, Mostafa Abd Alall, A.S. Koraim
This study aims to propose two types of an innovate breakwater with an economic feasibility. The first type is consists of two vertical perforated walls, the first wall is permeable in lower part (porosity e =50%) and is impermeable in the upper part. The second wall is permeable in the upper part (porosity e =50%) and the lower part is impermeable. Between the two walls there is a horizontal slotted wall. The second type is the same construction as on the first type but without horizontal slotted wall. The results indicates that the hydrodynamic performance of the first type is better than that of the second type in the percentage of (10-15%) because of the presence of the horizontal slotted wall. The effect of wave force on the first model bigger than the second model in the rang (10-15%). The wave force on the proposed models increases with increasing the relative depth (d/L). The transmission coefficient (kt) decreases with increasing the relative depth (d/L). The reflection coefficient (kr) increases with increasing the relative depth (d/L).
