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dc.contributor.authorThawewat, Nonthipat
dc.contributor.authorPhoemsapthawee, Surasak
dc.contributor.authorJungrungruengtaworn, Sirirat
dc.date.accessioned2020-10-08T09:17:29Z
dc.date.available2020-10-08T09:17:29Z
dc.date.issued2019
dc.identifier.citationThawewat, N.; Phoemsapthawee, S.; Jungrungruengtaworn, S. Viscous effects on the hydrodynamic performance of semi-active flapping propulsor. A: MARINE VIII. "MARINE VIII : proceedings of the VIII International Conference on Computational Methods in Marine Engineering". CIMNE, 2019, p. 607-614. ISBN 978-84-949194-3-5.
dc.identifier.isbn978-84-949194-3-5
dc.identifier.urihttp://hdl.handle.net/2117/330030
dc.description.abstractA numerical tool based on Lattice Boltzmann Method is used to investigate viscous effects on the hydrodynamic performance of a semi-active flapping propulsor. The obtained viscous results are compared with potential flow results previously presented in literature. It is found that both numerical tools give a qualitatively good trend agreement of the open water performance at high equivalent advance numbers. The results obtained using the viscous solver are slightly lower than that of potential flow in the region where flow separation is not observed. However, in case of small equivalent advance numbers, serious flow separation occurs due to high angle of attack, and hence the viscous results yield significantly lower efficiency. In spite of the mentioned deviation in the performance predictions, the LBM results confirm that the semi-active flapping propulsor is efficient over a wide range of operating conditions. This shows a possibility to practically use such self-pitching foil as a propulsion system.
dc.format.extent8 p.
dc.language.isoeng
dc.publisherCIMNE
dc.rightsOpen access
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subject.lcshFinite element method
dc.subject.lcshMarine engineering
dc.subject.otherFlappingfoil, Biomimetics, Propulsion
dc.titleViscous effects on the hydrodynamic performance of semi-active flapping propulsor
dc.typeConference report
dc.subject.lemacEnginyeria naval
dc.rights.accessOpen Access
local.citation.contributorMARINE VIII
local.citation.publicationNameMARINE VIII : proceedings of the VIII International Conference on Computational Methods in Marine Engineering
local.citation.startingPage607
local.citation.endingPage614


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