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Numerical Simulation of Two-Phase Flow Around Flatwater Competition Kayak Design-Evolution Models

2013Journal article Open access
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dc.contributor.authorMantha, Vishveshwar R.
dc.contributor.authorSilva, António
dc.contributor.authorMarinho, Daniel
dc.contributor.authorRouboa, Abel I
dc.date.accessioned2020-02-26T10:25:02Z
dc.date.available2020-02-26T10:25:02Z
dc.date.issued2013
dc.description.abstractThe aim of the current study was to analyze the hydrodynamics of three kayaks: 97-kg-class, single-rower, flatwater sports competition, full-scale design evolution models (Nelo K1 Vanquish LI, LII, and LIII) of M.A.R. Kayaks Lda., Portugal, which are among the fastest frontline kayaks. The effect of kayak design transformation on kayak hydrodynamics performance was studied by the application of computational fluid dynamics (CFD). The steady-state CFD simulations where performed by application of the k-omega turbulent model and the volume-of-fluid method to obtain two-phase flow around the kayaks. The numerical result of viscous, pressure drag, and coefficients along with wave drag at individual average race velocities was obtained. At an average velocity of 4.5 m/s, the reduction in drag was 29.4% for the design change from LI to LII and 15.4% for the change from LII to LIII, thus demonstrating and reaffirming a progressive evolution in design. In addition, the knowledge of drag hydrodynamics presented in the current study facilitates the estimation of the paddling effort required from the athlete during progression at different race velocities. This study finds an application during selection and training, where a coach can select the kayak with better hydrodynamics.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1123/jab.29.3.270pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/9544
dc.language.isoengpt_PT
dc.subjectAccelerationpt_PT
dc.subjectCompetitive Behaviorpt_PT
dc.subjectEquipment Designpt_PT
dc.subjectFrictionpt_PT
dc.subjectHumanspt_PT
dc.subjectModels Theoreticalpt_PT
dc.subjectPressurept_PT
dc.subjectViscositypt_PT
dc.subjectComputer Simulationpt_PT
dc.subjectHydrodynamicspt_PT
dc.subjectShipspt_PT
dc.titleNumerical Simulation of Two-Phase Flow Around Flatwater Competition Kayak Design-Evolution Modelspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FDES%2F098532%2F2008/PT
oaire.citation.endPage278pt_PT
oaire.citation.issue3pt_PT
oaire.citation.startPage270pt_PT
oaire.citation.titleJournal of Applied Biomechanicspt_PT
oaire.citation.volume29pt_PT
oaire.fundingStream5876-PPCDTI
person.familyNameSilva
person.familyNameMarinho
person.familyNameRouboa
person.givenNameAntónio
person.givenNameDaniel
person.givenNameAbel
person.identifier.ciencia-id8C15-83CB-5566
person.identifier.ciencia-id471B-F3CC-479A
person.identifier.ciencia-idA31F-03A9-5CD3
person.identifier.orcid0000-0001-5790-5116
person.identifier.orcid0000-0003-2351-3047
person.identifier.orcid0000-0003-2652-8789
person.identifier.scopus-author-id13410238400
person.identifier.scopus-author-id15022568500
person.identifier.scopus-author-id6603461700
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationf83dec25-3fd3-4490-843d-805a431ee258
relation.isAuthorOfPublication1b7a1cda-cf15-4686-bb08-1ac47b66b314
relation.isAuthorOfPublication1211756e-e062-4071-ba79-d81a97be62e7
relation.isAuthorOfPublication.latestForDiscovery1211756e-e062-4071-ba79-d81a97be62e7
relation.isProjectOfPublication4d3068bd-931d-4d9a-92ed-3b8acd4368c2
relation.isProjectOfPublication.latestForDiscovery4d3068bd-931d-4d9a-92ed-3b8acd4368c2

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