Results 181 to 190 of about 6,775 (231)

Submerged Floating Breakwaters

Journal of Offshore Mechanics and Arctic Engineering, 1991
In this paper we show how a submerged body can, if properly tuned to the incoming waves, reflect an appreciable amount of the incident wave energy by creating waves through its own motion which effectively cancel the incident waves passing over it. A general theory for this phenomenon is described which is applied to the cases of a hinged vertical ...
Evans, DV, Linton, CM
openaire   +1 more source

A Dynamic Submerged Breakwater

Journal of Waterway, Port, Coastal, and Ocean Engineering, 1996
An analytical solution is developed to investigate the behavior of a submerged or surface-piercing, long tethered breakwater of rectangular cross section. The equations of motion are solved to provide the surge, heave, and pitch responses of the structure. The wave reflection and transmission coefficients are calculated. Numerical results are presented
A. N. Williams, W. G. McDougal
openaire   +1 more source

A Submerged Compliant Breakwater

Journal of Offshore Mechanics and Arctic Engineering, 1992
A numerical technique is utilized to investigate the dynamics of a submerged compliant breakwater consisting of a flexible, beamlike structure anchored to the seabed and kept under tension by a small buoyancy chamber at the tip. The fluid motion is idealized as linearized, two-dimensional potential flow and the equation of motion of the breakwater is ...
A. N. Williams, P. T. Geiger, W. G. McDougal   +2 more
openaire   +1 more source

Armor Stability on Submerged Breakwaters

Journal of Waterway, Port, Coastal, and Ocean Engineering, 1992
Armor stability on submerged conventional breakwaters is examined using a hybrid method based on experimental, numerical, and empirical results. Four test runs are conducted to measure the horizontal fluid velocities and free-surface elevations over a submerged breakwater caused by a solitary wave.
Miguel Losada, Nobuhisa Kobayashi, Francisco L. Martín   +2 more
openaire   +1 more source

A STUDY OF SUBMERGED BREAKWATERS

Journal of Hydraulic Research, 1980
The results of an experimental investigation on the damping action of impermeable, submerged breakwaters of various shapes are presented and discussed. The effectiveness of the breakwater in damping the incident wave energy is measured in terms of coefficient of transmission.
M. Ii. Abdul Khader, S. P. Rai
openaire   +1 more source

Wave Transmission over Submerged Breakwaters

Journal of Waterway, Port, Coastal, and Ocean Engineering, 1989
Monochromatic wave reflection and transmission over a submerged impermeable breakwater is predicted numerically by slightly modifying the numerical model developed previously for predicting wave reflection and run‐up on rough or smooth impermeable slopes. The slight modification is related to the landward boundary condition required for the transmitted
Nobuhisa Kobayashi, Andojo Wurjanto
openaire   +1 more source

A Study on Submerged Breakwaters

Coastal Engineering in Japan, 1961
(1961). A Study on Submerged Breakwaters. Coastal Engineering in Japan: Vol. 4, No. 1, pp. 85-102.
Masashi Hom-ma, Kiyoshi Horikawa
openaire   +1 more source

Wave Diffraction through Submerged Breakwaters

Journal of Waterway, Port, Coastal, and Ocean Engineering, 1993
The water‐wave interaction with submerged breakwaters is examined to determine the reflection and transmission coefficients. Three types of breakwaters are considered, namely, a submerged breakwater extending from the sea bed until below the waterline, a breakwater extending from above the seawater to some distance below, and a breakwater extending all
openaire   +1 more source

Wave Reflection at Submerged Breakwaters

2009
Several types of structures are used in Coastal Engineering with the aim of preventing shoreline erosion, such as groynes, detached breakwaters, submerged breakwaters, etc. Submerged breakwaters have the advantage of their minimal visual impact, which has made them ever more popular (Chang & Liou, 2007).
Alberte Castro Ponte, Gregorio Iglesias, Francisco Taveira Pinto, Rodrigo Carballo   +3 more
openaire   +1 more source

Wave parameters after smooth submerged breakwater

Coastal Engineering, 2013
Based on the experimental studies of smooth submerged breakwater in the wave channel, it has been studied how the breakwater impacts on the changes of representative wave periods when the waves cross the breakwater. It has been shown that the reduction of the wave periods has a strong relationship with the wave steepness and relative submersion Rc/Hm0 −
Pršić, Marko, Carević, Dalibor, Lončar, Goran   +2 more
openaire   +3 more sources