Hydrodynamic analysis of flapping wing systems for augmenting ship propulsion in rough sea

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dc.contributor.author Belibassakis, KA en
dc.contributor.author Politis, GK en
dc.date.accessioned 2014-03-01T02:53:40Z
dc.date.available 2014-03-01T02:53:40Z
dc.date.issued 2012 en
dc.identifier.issn 10986189 en
dc.identifier.uri http://hdl.handle.net/123456789/36472
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-84866067495&partnerID=40&md5=526b1b47570d6b7a25c1a2e2d3616759 en
dc.subject Biomimetic ship propulsion en
dc.subject Energy saving devices en
dc.subject Flapping wings en
dc.title Hydrodynamic analysis of flapping wing systems for augmenting ship propulsion in rough sea en
heal.type conferenceItem en
heal.publicationDate 2012 en
heal.abstract In the present work the analysis of an oscillating wing, located beneath the ship's hull, in random motion, is examined as an unsteady thrust production mechanism, augmenting the overall propulsion system of the ship. The wing undergoes a combined vertical and angular oscillatory motion, while travelling at constant forward speed. The vertical motion is induced by the random motion of the ship in waves, essentially due to ship heave and pitch, while the wing pitching motion is selected as a proper function of wing vertical motion and it is imposed by an external mechanism. Numerical results are presented for the thrust produced by the biomimetic wing as well as the resulting reduction in ship motions over a range of motion parameters. Our calculations indicate that the biomimetic wing is the proper mechanism for transforming the hull kinetic energy to useful thrust, augmenting thus the ship propulsion in rough seas with simultaneous reduction in ship motions. The present method can serve as a useful tool for the assessment and the preliminary design and control of such thrustaugmenting devices, which enhance the overall performance of a ship in a wavy environment. Copyright © 2012 by the International Society of Offshore and Polar Engineers (ISOPE). en
heal.journalName Proceedings of the International Offshore and Polar Engineering Conference en
dc.identifier.spage 929 en
dc.identifier.epage 936 en

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