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Analysis of drafting effects in swimming using computational fluid dynamics

2008Journal article Open access
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dc.contributor.authorSilva, António
dc.contributor.authorRouboa, Abel I
dc.contributor.authorMoreira, António
dc.contributor.authorReis, VM
dc.contributor.authorAlves, Francisco
dc.contributor.authorVilas Boas, J. Paulo
dc.contributor.authorMarinho, Daniel
dc.date.accessioned2020-02-28T11:22:37Z
dc.date.available2020-02-28T11:22:37Z
dc.date.issued2008
dc.description.abstractThe purpose of this study was to determine the effect of drafting distance on the drag coefficient in swimming. A k-epsilon turbulent model was implemented in the commercial code Fluent(®) and applied to the fluid flow around two swimmers in a drafting situation. Numerical simulations were conducted for various distances between swimmers (0.5-8.0 m) and swimming velocities (1.6-2.0 m.s(-1)). Drag coefficient (Cd) was computed for each one of the distances and velocities. We found that the drag coefficient of the leading swimmer decreased as the flow velocity increased. The relative drag coefficient of the back swimmer was lower (about 56% of the leading swimmer) for the smallest inter-swimmer distance (0.5 m). This value increased progressively until the distance between swimmers reached 6.0 m, where the relative drag coefficient of the back swimmer was about 84% of the leading swimmer. The results indicated that the Cd of the back swimmer was equal to that of the leading swimmer at distances ranging from 6.45 to 8. 90 m. We conclude that these distances allow the swimmers to be in the same hydrodynamic conditions during training and competitions. Key pointsThe drag coefficient of the leading swimmer decreased as the flow velocity increased.The relative drag coefficient of the back swimmer was least (about 56% of the leading swimmer) for the smallest inter-swimmer distance (0.5 m).The drag coefficient values of both swimmers in drafting were equal to distances ranging between 6.45 m and 8.90 m, considering the different flow velocities.The numerical simulation techniques could be a good approach to enable the analysis of the fluid forces around objects in water, as it happens in swimming.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/9622
dc.language.isoengpt_PT
dc.relationCOMPUTATIONAL FLUID DYNAMICS: AN ANALYTICAL TOOL FOR THE 21ST CENTURY SWIMMING RESEARCH
dc.subjectTrainingpt_PT
dc.subjectDragpt_PT
dc.subjectFinite element modelingpt_PT
dc.subjectHuman bodypt_PT
dc.subjectTandempt_PT
dc.titleAnalysis of drafting effects in swimming using computational fluid dynamicspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCOMPUTATIONAL FLUID DYNAMICS: AN ANALYTICAL TOOL FOR THE 21ST CENTURY SWIMMING RESEARCH
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCI%2FDES%2F58872%2F2004/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F25241%2F2005/PT
oaire.citation.endPage66pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage60pt_PT
oaire.citation.titleJournal of Sports Science and Medicinept_PT
oaire.citation.volume7pt_PT
oaire.fundingStreamPOCI
oaire.fundingStreamSFRH
person.familyNameSilva
person.familyNameRouboa
person.familyNameBessone Ferreira Alves
person.familyNameVilas-Boas
person.familyNameMarinho
person.givenNameAntónio
person.givenNameAbel
person.givenNameFrancisco José
person.givenNameJ. Paulo
person.givenNameDaniel
person.identifier497179
person.identifier.ciencia-id8C15-83CB-5566
person.identifier.ciencia-idA31F-03A9-5CD3
person.identifier.ciencia-idBF1B-3A8D-1328
person.identifier.ciencia-idCC1C-23F1-2CBB
person.identifier.ciencia-id0D18-D46F-09A1
person.identifier.ciencia-id471B-F3CC-479A
person.identifier.orcid0000-0001-5790-5116
person.identifier.orcid0000-0003-2652-8789
person.identifier.orcid0000-0002-4996-1414
person.identifier.orcid0000-0002-1317-155X
person.identifier.orcid0000-0002-4109-2939
person.identifier.orcid0000-0003-2351-3047
person.identifier.scopus-author-id13410238400
person.identifier.scopus-author-id6603461700
person.identifier.scopus-author-id26424846800
person.identifier.scopus-author-id15022568500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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