Performance of Using Porous Floating Cylindrical Breakwater with Different Porosities as a Wave Energy Dissipater in Experimental Study

Abstract


 
 
 Floating breakwaters are commonly used to protect shorelines, marine structures and harbors from wave attacks. Through the physical model test method, the wave energy dissipation performance by using porous floating cylindrical breakwater under regular waves. This research content in this paper for a horizontal cylindrical pipe with different diameters and with different percentage of porosity working as a single pipe or as a group. Which contains five different models with diameters (2 inch, 3 inch, 4 inch, (3&4 inch together) and (2, 3 & 4 inch together) by choosing different percentage of porosities (15, 30 & 50%) to achieve maximum energy dissipation with minimum transmitted energy. The experiments were carried out in a recirculating open channel flume located at the Hydraulics Engineering Laboratory, Higher Institute of Engineering in El Shorouk City.
 
 

Control of the Swell by an Array of Helmholtz Resonators

“…This requires an additional zoom on the microscopic region being the vicinity of the neck ends and the interior of the neck. Expectedly we find that the velocity in the neck is constant and the potential is linear resulting in The above equation is close to the jump announced in (4) as u = ∂ x φ owing to (2). It remains that (A4) slightly differs from (5).…”

“…Among the different strategies, floating breakwaters (FBW) are attractive when bottom-connected structures are not suitable, e.g., in sea area with deep waters or soft soil beds. Besides, they have less impact on the underwater fauna and flora [1,2]. The building block of such breakwaters is a rigid or flexible floating body, being either plain or partially empty.…”