NDLI: Response Behaviour of Perforated Cylinders in Regular Waves

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Chandrasekaran, Srinivasan Pandian, S. Parameswara
Copyright Year	2011
Abstract	In order to reduce the direct wave impact, coastal and offshore structures are often constructed with one or more perforated layers. Several permeable breakwaters and docks have been deployed in coastal protection measures to reduce direct impact due to encountered wave loads and to reduce wave reflection in front of these structures as well; compared with the traditional ones, such structural forms are found to be more economical. Such structures result in lesser surface fluctuation in harbours due to the low reflection, which is vital for loading and unloading of ships. Deploying permeable breakwaters posses other advantages namely: i) increasing water circulation; ii) retaining water quality and iii) enhances coastal protection. Emerged and submerged perforated cylindrical structures reduce wave-structure interactions and scouring problems considerably, but their use on floating structures is scarce in the literature. This study is focused on detailed experimental investigations carried out on impermeable inner cylinder encompassed by a larger outer cylinder with perforatios along its length. By varying the porosity and perforatio diameter, their influence on the hydrodynamic response of the cylindrical member is highlighted through the current study. The conclusions on the comparison of forces in the cylinder with and without perforated cylinder coverage are presented.
Sponsorship	Ocean, Offshore and Arctic Engineering Division
Starting Page	657
Ending Page	661
Page Count	5
File Format	PDF
ISBN	9780791844380
DOI	10.1115/OMAE2011-49839
Volume Number	Volume 6: Ocean Engineering
Conference Proceedings	ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
Language	English
Publisher Date	2011-06-19
Publisher Place	Rotterdam, The Netherlands
Access Restriction	Subscribed
Subject Keyword	Shorelines Water Ships Offshore structures Reflection Water pollution Porosity Waves Floating structures Stress Cylinders Breakwaters
Content Type	Text
Resource Type	Article

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