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CFD Analysis for a Ballast Free Ship Design

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Title CFD Analysis for a Ballast Free Ship Design
 
Creator Godey, Avinash
Misra, S.C.
Sha, O.P.
 
Description 2053-2059
Shipping transfers approximately 3 to 5 billion
tonnes of ballast water internationally each year. This ballast water
transferred between different ports is a serious environmental problem. There
are many marine species like bacteria, small invertebrates and the eggs, etc.,
that are carried in ship’s ballast water which are small enough to pass through
a ship’s intake at ports and when discharged, lead to severe ecological
problems. To overcome this, a concept of ballast free ship has been developed
in which ballast water exchange and treatment is avoided by providing
flow-through longitudinal pipes in the double bottom instead of conventional
ballast tank. During the design of the ballast free ship, different hull forms
have been generated with various hull shapes of the vessel which have been
studied with regard to hydrodynamic behaviour. Finally one hull form has been
selected for further study. The present work aims to estimate the penalty on
resistance using CFD techniques using SHIPFLOW® software. These
results are validated by model experiments for the conventional and the
proposed ballast Free form at loaded and ballast drafts in the Hydrodynamics
Laboratory of the Department of Ocean Engineering and Naval Architecture, IIT Kharagpur.
 
Date 2016-06-30T05:00:03Z
2016-06-30T05:00:03Z
2014-11
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34574
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(11) [November 2014]