REFLECTION OF IRREGULAR WAVES FROM VERTICAL POROUS SEAWALLS

Porous seawalls are common shore protection structures around the world. They can dissipate the incident wave energy and reduce the reflected wave height.Vertical porous seawalls are considered as effective replacement for traditional impermeable seawalls, especially for the reduction of wave energy in harbors andfishing ports. The amount of wave energy dissipation depends on the porosity of the seawall. In addition, the shore side of the vertical porous seawall can be used forvessel berthing activities. Many experimental studies have been conducted on different hydrodynamic aspects of waves, such as reflection, transmission, and dissipation, and their effects on various seawall structures. From the literature survey, it was concluded that nearly no investigation has been carried out on the mechanism of wave reflection from vertical caisson-type porous and semi-porous seawalls.