A recent development of a parabolic equation method for wave propagation in a non-orthogonal coordinate system is reviewed. A transformation of the full governing equation prior to development of any approximation leads to a model whose results stand in closer agreement to laboratory data for a case of waves propagating into a breakwater harbor. The effect of amplitude dispersion on predicted w...

Breakwaters are marine structures useful for the safe harbouring of ships and the protection of harbours from sedimentation and coasts from erosion. Breakwater monitoring is then a critical part of coastal engineering research, since it is crucial to know the state of a breakwater at any time in order to evaluate its health in terms of stability and plan restoration works. In this paper we pres...

This research is conducted to examine the transmission wave and energy dissipation of a box culvert-type slotted breakwater, which designed as breakwater structure with watertight wall at top culvert type hole bottom. The process involves physical modeling this in laboratory. parameters are varied determine performance. results show that coefficient (KT) value reduced relative height (hL/d) dec...

Shorelines at the interface of marine, estuarine and terrestrial biomes are among the most degraded and threatened habitats in the coastal zone because of their sensitivity to sea level rise, storms and increased human utilization. Previous efforts to protect shorelines have largely involved constructing bulkheads and seawalls which can detrimentally affect nearshore habitats. Recently, efforts...

In the present study, problems of diffraction and radiation water waves by a cylindrical heaving wave energy converter (WEC) placed in front reflecting V-shaped vertical breakwater are formulated. The idea conceived is based on possible exploitation amplified scattered reflected potentials originating from presence breakwater, towards increasing WEC’s power absorption due to reflections. An ana...

A method for calculating the parameters of gravitational waves that interact with vertical permeable breakwaters, based on potential theory, has been developed and presented. The wave motion a fluid was described by velocity satisfies Laplace equation. shape surface components vector were determined. Numerical analysis influence permeability wall energy adsorption carried out. propagation in li...

submerged breakwaters are one of the shore protective structures. any discontinuity in these breakwaters causes changes on current parameters including speed and water surface profile. in this paper, discontinuous submerged breakwaters were modelled to investigate the changes in the wave and flow pattern.to investigate the phenomenon, three models including a shore with constant slope, a shore ...

KOMAR, P.D., 2010. Shoreline evolution and management of Hawke’s Bay, New Zealand: tectonics, coastal processes, and human impacts. Journal of Coastal Research, 26(1), 143–156. West Palm Beach (Florida), ISSN 0749-0208. The evolution of the coast of Hawke’s Bay, New Zealand, and its erosion problems have been governed by multiple factors, including its tectonic setting with an earthquake in 193...