Publication
Computational fluid dynamics vs. inverse dynamics methods to determine passive drag in two breaststroke glide positions
| Summary: | Computational fluid dynamics (CFD) plays an important role to quantify, understand and "observe" the water movements around the human body and its effects on drag (D). We aimed to investigate the flow effects around the swimmer and to compare the drag and drag coefficient (CD) values obtained from experiments (using cable velocimetry in a swimming pool) with those of CFD simulations for the two ventral gliding positions assumed during the breaststroke underwater cycle (with shoulders flexed and upper limbs extended above the head-GP1; with shoulders in neutral position and upper limbs extended along the trunk-GP2). Six well-trained breaststroke male swimmers (with reasonable homogeneity of body characteristics) participated in the experimental tests; afterwards a 3D swimmer model was created to fit within the limits of the sample body size profile. The standard k-ε turbulent model was used to simulate the fluid flow around the swimmer model. Velocity ranged from 1.30 to 1.70 m/s for GP1 and 1.10 to 1.50 m/s for GP2. Values found for GP1 and GP2 were lower for CFD than experimental ones. Nevertheless, both CFD and experimental drag/drag coefficient values displayed a tendency to jointly increase/decrease with velocity, except for GP2 CD where CFD and experimental values display opposite tendencies. Results suggest that CFD values obtained by single model approaches should be considered with caution due to small body shape and dimension differences to real swimmers. For better accuracy of CFD studies, realistic individual 3D models of swimmers are required, and specific kinematics respected. |
|---|---|
| Main Authors: | Costa, L. |
| Other Authors: | Mantha, V R; Silva, António; Fernandes, Ricardo J.; Marinho, Daniel; Vilas Boas, J. Paulo; Machado, Leandro; Rouboa, A |
| Subject: | Adolescent Biomechanical Phenomena Child Humans Hydrodynamics Imaging Three-Dimensional Male Posture Rheology Young Adult Swimming |
| Year: | 2015 |
| Country: | Portugal |
| Document type: | article |
| Access type: | open access |
| Associated institution: | Universidade da Beira Interior |
| Language: | English |
| Origin: | uBibliorum |
| _version_ | 1868420703991103488 |
|---|---|
| author | Costa, L. |
| author2 | Mantha, V R Silva, António Fernandes, Ricardo J. Marinho, Daniel Vilas Boas, J. Paulo Machado, Leandro Rouboa, A |
| author2_role | author author author author author author author |
| author_facet | Costa, L. Mantha, V R Silva, António Fernandes, Ricardo J. Marinho, Daniel Vilas Boas, J. Paulo Machado, Leandro Rouboa, A |
| author_role | author |
| contributor_name_str_mv | uBibliorum |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Costa, L.\"},{\"Person.name\":\"Mantha, V R\"},{\"Person.name\":\"Silva, António\",\"Person.identifier.orcid\":\"0000-0001-5790-5116\"},{\"Person.name\":\"Fernandes, Ricardo J.\",\"Person.identifier.orcid\":\"0000-0002-5811-0443\"},{\"Person.name\":\"Marinho, Daniel\",\"Person.identifier.orcid\":\"0000-0003-2351-3047\"},{\"Person.name\":\"Vilas Boas, J. Paulo\",\"Person.identifier.orcid\":\"0000-0002-4109-2939\"},{\"Person.name\":\"Machado, Leandro\",\"Person.identifier.orcid\":\"0000-0001-5332-5974\"},{\"Person.name\":\"Rouboa, A\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | uBibliorum |
| datacite.creators.creator.creatorName.fl_str_mv | Costa, L. Mantha, V R Silva, António Fernandes, Ricardo J. Marinho, Daniel Vilas Boas, J. Paulo Machado, Leandro Rouboa, A |
| datacite.date.Accepted.fl_str_mv | 2015-07-16T00:00:00Z |
| datacite.date.available.fl_str_mv | 2020-02-14T16:46:20Z |
| datacite.date.embargoed.fl_str_mv | 2020-02-14T16:46:20Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Adolescent Biomechanical Phenomena Child Humans Hydrodynamics Imaging Three-Dimensional Male Posture Rheology Young Adult Swimming |
| datacite.titles.title.fl_str_mv | Computational fluid dynamics vs. inverse dynamics methods to determine passive drag in two breaststroke glide positions |
| dc.contributor.none.fl_str_mv | uBibliorum |
| dc.creator.none.fl_str_mv | Costa, L. Mantha, V R Silva, António Fernandes, Ricardo J. Marinho, Daniel Vilas Boas, J. Paulo Machado, Leandro Rouboa, A |
| dc.date.Accepted.fl_str_mv | 2015-07-16T00:00:00Z |
| dc.date.available.fl_str_mv | 2020-02-14T16:46:20Z |
| dc.date.embargoed.fl_str_mv | 2020-02-14T16:46:20Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.6/9274 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Adolescent Biomechanical Phenomena Child Humans Hydrodynamics Imaging Three-Dimensional Male Posture Rheology Young Adult Swimming |
| dc.title.fl_str_mv | Computational fluid dynamics vs. inverse dynamics methods to determine passive drag in two breaststroke glide positions |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Computational fluid dynamics (CFD) plays an important role to quantify, understand and "observe" the water movements around the human body and its effects on drag (D). We aimed to investigate the flow effects around the swimmer and to compare the drag and drag coefficient (CD) values obtained from experiments (using cable velocimetry in a swimming pool) with those of CFD simulations for the two ventral gliding positions assumed during the breaststroke underwater cycle (with shoulders flexed and upper limbs extended above the head-GP1; with shoulders in neutral position and upper limbs extended along the trunk-GP2). Six well-trained breaststroke male swimmers (with reasonable homogeneity of body characteristics) participated in the experimental tests; afterwards a 3D swimmer model was created to fit within the limits of the sample body size profile. The standard k-ε turbulent model was used to simulate the fluid flow around the swimmer model. Velocity ranged from 1.30 to 1.70 m/s for GP1 and 1.10 to 1.50 m/s for GP2. Values found for GP1 and GP2 were lower for CFD than experimental ones. Nevertheless, both CFD and experimental drag/drag coefficient values displayed a tendency to jointly increase/decrease with velocity, except for GP2 CD where CFD and experimental values display opposite tendencies. Results suggest that CFD values obtained by single model approaches should be considered with caution due to small body shape and dimension differences to real swimmers. For better accuracy of CFD studies, realistic individual 3D models of swimmers are required, and specific kinematics respected. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://ubibliorum.ubi.pt/bitstreams/aea4b45f-be42-4d22-b4e7-4b52f43d346c/download |
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| identifier.url.fl_str_mv | http://hdl.handle.net/10400.6/9274 |
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| institution | Universidade da Beira Interior |
| instname_str | Universidade da Beira Interior |
| language | eng |
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| oai_identifier_str | oai:ubibliorum.ubi.pt:10400.6/9274 |
| organization_str_mv | urn:organizationAcronym:ubi |
| person_str_mv | Costa, L. Mantha, V R Silva, António Silva, António https://www.ciencia-id.pt/8C15-83CB-5566 8C15-83CB-5566 http://orcid.org/0000-0001-5790-5116 0000-0001-5790-5116 Fernandes, Ricardo J. Fernandes, Ricardo J. http://orcid.org/0000-0002-5811-0443 0000-0002-5811-0443 Marinho, Daniel Marinho, Daniel https://www.ciencia-id.pt/471B-F3CC-479A 471B-F3CC-479A http://orcid.org/0000-0003-2351-3047 0000-0003-2351-3047 Vilas Boas, J. Paulo Vilas Boas, J. Paulo https://www.ciencia-id.pt/0D18-D46F-09A1 0D18-D46F-09A1 http://orcid.org/0000-0002-4109-2939 0000-0002-4109-2939 Machado, Leandro Machado, Leandro https://www.ciencia-id.pt/7E17-6B94-5441 7E17-6B94-5441 http://orcid.org/0000-0001-5332-5974 0000-0001-5332-5974 Rouboa, A |
| publishDate | 2015 |
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| spelling | engpt_PTComputational fluid dynamics (CFD) plays an important role to quantify, understand and "observe" the water movements around the human body and its effects on drag (D). We aimed to investigate the flow effects around the swimmer and to compare the drag and drag coefficient (CD) values obtained from experiments (using cable velocimetry in a swimming pool) with those of CFD simulations for the two ventral gliding positions assumed during the breaststroke underwater cycle (with shoulders flexed and upper limbs extended above the head-GP1; with shoulders in neutral position and upper limbs extended along the trunk-GP2). Six well-trained breaststroke male swimmers (with reasonable homogeneity of body characteristics) participated in the experimental tests; afterwards a 3D swimmer model was created to fit within the limits of the sample body size profile. The standard k-ε turbulent model was used to simulate the fluid flow around the swimmer model. Velocity ranged from 1.30 to 1.70 m/s for GP1 and 1.10 to 1.50 m/s for GP2. Values found for GP1 and GP2 were lower for CFD than experimental ones. Nevertheless, both CFD and experimental drag/drag coefficient values displayed a tendency to jointly increase/decrease with velocity, except for GP2 CD where CFD and experimental values display opposite tendencies. Results suggest that CFD values obtained by single model approaches should be considered with caution due to small body shape and dimension differences to real swimmers. For better accuracy of CFD studies, realistic individual 3D models of swimmers are required, and specific kinematics respected.application/pdfpt_PTComputational fluid dynamics vs. inverse dynamics methods to determine passive drag in two breaststroke glide positionsCosta, L.Mantha, V RPersonalSilva, AntónioDSpacehttp://dspace.org/items/f83dec25-3fd3-4490-843d-805a431ee258DSpacehttp://dspace.org/items/f83dec25-3fd3-4490-843d-805a431ee258SilvaAntónioCiência IDhttps://www.ciencia-id.pt8C15-83CB-5566ORCIDhttp://orcid.org0000-0001-5790-5116Scopus Author IDhttps://www.scopus.com13410238400Scopus Author IDhttps://www.scopus.com56553599600PersonalFernandes, Ricardo J.DSpacehttp://dspace.org/items/e2a64a7b-a6b0-434a-b3d7-72f41b9f3866DSpacehttp://dspace.org/items/e2a64a7b-a6b0-434a-b3d7-72f41b9f3866FernandesRicardo J.ORCIDhttp://orcid.org0000-0002-5811-0443PersonalMarinho, DanielDSpacehttp://dspace.org/items/1b7a1cda-cf15-4686-bb08-1ac47b66b314DSpacehttp://dspace.org/items/1b7a1cda-cf15-4686-bb08-1ac47b66b314MarinhoDanielCiência IDhttps://www.ciencia-id.pt471B-F3CC-479AORCIDhttp://orcid.org0000-0003-2351-3047Scopus Author IDhttps://www.scopus.com15022568500PersonalVilas Boas, J. PauloDSpacehttp://dspace.org/items/66d9e3f3-ab73-45ef-b401-571284df3553DSpacehttp://dspace.org/items/66d9e3f3-ab73-45ef-b401-571284df3553Vilas-BoasJ. PauloCiência IDhttps://www.ciencia-id.pt0D18-D46F-09A1ORCIDhttp://orcid.org0000-0002-4109-2939Scopus Author IDhttps://www.scopus.com26424846800PersonalMachado, LeandroDSpacehttp://dspace.org/items/2ef6c423-d9ae-4e90-8c96-307ce18f596aDSpacehttp://dspace.org/items/2ef6c423-d9ae-4e90-8c96-307ce18f596aMachadoLeandroCiência IDhttps://www.ciencia-id.pt7E17-6B94-5441ORCIDhttp://orcid.org0000-0001-5332-5974Scopus Author IDhttps://www.scopus.com7102866127Rouboa, AHostingInstitutionOrganizationaluBibliorume-mailmailto:noreplyuBibliorum@ubi.ptnoreplyuBibliorum@ubi.ptDOIIsPartOf10.1016/j.jbiomech.2015.03.0052020-02-14T16:46:20Z2015-07-162015-07-16T00:00:00ZHandlehttp://hdl.handle.net/10400.6/9274http://purl.org/coar/access_right/c_abf2open accessAdolescentBiomechanical PhenomenaChildHumansHydrodynamicsImaging Three-DimensionalMalePostureRheologyYoung AdultSwimming839282 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://ubibliorum.ubi.pt/bitstreams/aea4b45f-be42-4d22-b4e7-4b52f43d346c/downloadJournal of biomechanics48102221-6 |
| spellingShingle | Computational fluid dynamics vs. inverse dynamics methods to determine passive drag in two breaststroke glide positions Costa, L. Adolescent Biomechanical Phenomena Child Humans Hydrodynamics Imaging Three-Dimensional Male Posture Rheology Young Adult Swimming |
| status | SINGLETON |
| subject.fl_str_mv | Adolescent Biomechanical Phenomena Child Humans Hydrodynamics Imaging Three-Dimensional Male Posture Rheology Young Adult Swimming |
| title | Computational fluid dynamics vs. inverse dynamics methods to determine passive drag in two breaststroke glide positions |
| title_full | Computational fluid dynamics vs. inverse dynamics methods to determine passive drag in two breaststroke glide positions |
| title_fullStr | Computational fluid dynamics vs. inverse dynamics methods to determine passive drag in two breaststroke glide positions |
| title_full_unstemmed | Computational fluid dynamics vs. inverse dynamics methods to determine passive drag in two breaststroke glide positions |
| title_short | Computational fluid dynamics vs. inverse dynamics methods to determine passive drag in two breaststroke glide positions |
| title_sort | Computational fluid dynamics vs. inverse dynamics methods to determine passive drag in two breaststroke glide positions |
| topic | Adolescent Biomechanical Phenomena Child Humans Hydrodynamics Imaging Three-Dimensional Male Posture Rheology Young Adult Swimming |
| topic_facet | Adolescent Biomechanical Phenomena Child Humans Hydrodynamics Imaging Three-Dimensional Male Posture Rheology Young Adult Swimming |
| url | http://hdl.handle.net/10400.6/9274 |
| visible | 1 |
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