... ABSTRACT In this study, effectiveness of artificial reef which is installed increasingly for the beach erosion countermeasure has been reviewed. The wave dissipation rate of artificial reef consisting of permeability blocks was examined through hydraulic model test. The blocks applied...

... northward, measures are examined. In this study, since almost of all sand must be transported to jetties, sand nourishment is not a good measure. Detached breakwaters, artificial reefs, and non-measures are examined with the costs on the construction or the compensation, and the prevention effect of wave...

... and velocity processes near the reef were analyzed and compared. In general, the wave attenuation mechanism of the artificial reef can be summarized as follows: the reef causes more dissipation than reflection to attenuate the waves; the reef reflects more short waves than long waves; long waves are mainly...

... of objectives, including both market and non-market values. Decommissioning options selected for in-depth analysis were complete platform removal and partial removal to 85 feet below the water line, with the remaining structure converted to an artificial reef. PLATFORM performed key analyses of the impacts...

.../m/s, Maximum wave height (7.38x0.4=2.95m) q=0.024m3/m/s. (3) The case of an artificial reef (the crown height MSL.-0.5m, the crown width 15m, wave dissipating coefficient 0.4) Irregular wave height (4.1x0.4=1.64m) q=0.000m3/m/s, Maximum wave height (7.38x0.4=2.95m) q=0.024m3/m/s. According...

... Abstract Naturally occurring shoals and near-shore reefs act as good wave attenuators. Artificial creations of such nature identical attenuators are called artificial reefs. They are being increasingly deployed since the past decade, as artificial reefs may be included under soft engineering...

... 3D Numerical Reconstruction of the Hydrodynamics around an Artificial Reef in Loch Linnhe, Scotland Yassir Al-Bourae1, Martin Downie1 and Qiuhua Liang2 1 School of Marine Science and Technology, Newcastle University Newcastle upon Tyne, England, UK 2 School of Civil Engineering and Geosciences...

... involves the concept of sustainable fisheries, which has also revived the interest in artificial reefs as an alternative solution to marine ecosystem recovery. In the present instance, the authors are concerned with investigating the flow about artificial reefs that have been installed on the sea bed...

... breakwaters and artificial reefs, have become nowadays increasingly popular. They can be considered as a ‘soft’ shore protection method, provided that it does not have optical harmful effect and mainly does not prevent significantly the circulation of waters, contrary to the conventional methods. A proper...

... by the structure and the latter by the porous material. Verification researches in actual sea area on these functions are being performed at present and we introduce some results of these experiments. KEY WORDS: Artificial Reef; Current Control; Hydraulic Experiment; Sea Weed and Porous Substrates. INTRODUCTION...

... ABSTRACT: The flow fields around single and two combinations of star shape artificial reefs are investigated both numerically and experimentally. The numerical model is based on the Reynolds Navier-Stokes (RANS) equations embedded with a RNG k - ε turbulence model and SIMPEC algorithm...

... Portos e Estruturas Marítimas, Laboratório Nacional de Engenharia Civil, Lisboa, Portugal Maria João Nogueira, Luis Miguel Carvalho Divisão do Litoral, Câmara Municipal de Cascais, Cascais, Portugal ABSTRACT This paper describes the viability study of an artificial reef dedicated to improve the surf...

... Artificial reefs fulfill a similar role to that of coral reefs in providing a suitable living environment for fish and a vast array of other marine life and microorgansisms. Recent studies have demonstrated the value of investigating the flow phenomena in and around artificial reefs as a means...

... Numerical Flow Simulation for the Deployment Analysis of Artificial Reefs Tsung-Lung Liu1 Sy-Yeuan Liou1 Dong-Tour Su2 Der-Wei Chen1 Chung-Cheng Institute of Technology, National Defense University,TAIWAN, China.1 Ming -Hsin University of Science & Technology, TAIWAN, China. 2 ABSTRACT...

... ABSTRACT Since 1971, artificial reefs of durable concrete structure were constructed and installed as government-subsidized projects for the creation of new fishing grounds in Korean coastal waters. Few reports are available on the reef structure designs suitable for target fish species...

... sonar imagery positioning side-scan sonar imagery information investigation concrete block artificial benthic habitat artificial habitat site artificial reef reservoir characterization boat sediment navigation mito artificial habitat site reef Positioning of Artificial Benthic...

... rubble mound breakwaters with crests around the still water level (c) and artificial reefs (d) are increasingly being constructed instead of conventional rubble mound breakwaters (b) with the aim to acquire better landscaping in coastal areas and create harmony with ocean organisms. There is an advantage...

.... Furthermore we planned and located the new type of artificial reef which has the multi fimctions to the sea The fimctions of new artificial reef are control of current velocity, increase the prey abundance, promotion of fish aggregation and improve the marine habitats. Now we are researching physical...

...-An, Lin-Yang, and Fang-Liau site was predicted to be about 2m, 2.lm, and 0.65m. The amount of subsidence deduced from side-scan sonar observations was more or less comparable with the predicted value. In addition, sicouring is the major factor which induced the burial of artificial reefs. The effect...

... to their non-linear characteristics - wave filters are additionally investigated experimentally in wave flumes of different scale. KEY WORDS Wave-structure interactions, Numerical RANSE/VOF simulation, artificial reefs, coastal protection INTRODUCTION Wave induced erosion &unprotected coasts and beaches...