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ITS » Proceeding » Fakultas Teknologi Kelautan
Posted by rudiwp@oe.its.ac.id at 23/09/2015 17:47:02  •  1207 Views


ANALISA GETARAN AKIBAT VORTEKS PADA SEBUAH SILINDER FLEKSIBEL DENGAN KONDISI UJUNG - BAWAH BEBAS

Author :
PERDANA, SANDRA  ( None )
PRASTIANTO ,RUDI WALUJO   MURDJITO




ABSTRAK

The riser of offshore structure such as Ocean Thermal Energy Conversion OTEC and CO2 Sequestration Platforms has bottom free-end condition. This situation leads to complexity in riserfluid interaction. Morse et a 2008 have done an experimental research in laboratory on a rigid cylinder with variation on its end-condition subjected to a current load until produced different amplitudes of cylinders response. The present study tries to numerically approximate the result of the Morse et al. 2008 work by using software for a cylinder with bottom free-end condition. The results consist of hydrodynamic characteristics of fluid flow amplitude and frequency of the cylinder response. The results indicate that the cylinder response frequency from numerical analysis showed a good agreement with the experimental result. But the cylinder response amplitudes have significant difference with the result from the experimental analysis. This was caused by the software ihat could not be able to model three dimensional flows around the bottom free-end of the cylinder.



KeywordsBottom free-end condition, vortex induced vibration, OTEC, Co2 sequestration platform
 
Subject:  Konstruksi beton
Date Create: 19/11/2015
Type: Text
Format: PDF
Language: Indonesian
Identifier: ITS-Proceeding-40114150000125
Collection ID: 40114150000125
Call Number: 627.98 Per a


Source
Article of Proceedings

Coverage
ITS Community

Rights
Seminar Nasional Teori dan Aplikasi Teknologi Kelautan, 15 Desember 2011 SENTA 2011




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ITS-Proceeding-40114150000125-38979.pdf




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