Effect of Hydrophobic Surface on Velocity Profile of Pipe Flow

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dc.contributor.authorJašíková, Darinacs
dc.contributor.authorKotek, Michalcs
dc.contributor.authorFialová, Simonacs
dc.contributor.authorKopecký, Václavcs
dc.coverage.issue12cs
dc.coverage.volume14cs
dc.date.issued2017-08-07cs
dc.description.abstractThe branch of fluid mechanics is also familiar with biomechanics recently. The combination of hydrodynamic The branch of fluid mechanics is also familiar with biomechanics recently. The combination of hydrodynamic and mechanical specification of the flow can reach the complex description of the liquid flow in the hydraulic system. The hydraulic system can represent the airways and ventilation system, and external blood circulation. An important role in the study of hemo-transport has its interaction with walls. Contribution of fluid mechanics can imagine the equivalent of flow in arteries as the pipe flow, hence the Poiseuille's flow, with appropriate viscoelasticity and wettability against Newtonian liquids. The initial condition is the flexible wall and hydrophobic surface of the model. The simplification of the system leads to primary setup focused in one direction. It is the hydrophobic surface in our case. Here we present the study based on four various set of samples. We worked with hydrophobic surfaces, with contact angle (CA) above 90°, and with ultra – hydrophobic surfaces with CA above 120°. Increasing the contact angle leads from bubbles conglomeration to uniform air film. The existence of symmetrical air film close to hydrophobic surface has an effect on the character of the velocity profile and its boundary slip condition. The resulting velocity profiles give us information of velocity disturbance close to the wall and contribution of vorticities in the flow.en
dc.formattextcs
dc.format.extent83-88cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationWSEAS Transactions on Biology and Biomedicine. 2017, vol. 14, issue 12, p. 83-88.en
dc.identifier.isbn1109-9518cs
dc.identifier.issn1109-9518cs
dc.identifier.orcid0000-0002-8776-4219cs
dc.identifier.other146802cs
dc.identifier.researcheridR-4959-2017cs
dc.identifier.scopus54943181000cs
dc.identifier.urihttp://hdl.handle.net/11012/187733
dc.language.isoencs
dc.publisherWSEAScs
dc.relation.ispartofWSEAS Transactions on Biology and Biomedicinecs
dc.relation.urihttp://www.wseas.org/multimedia/journals/biology/2017/a245808-066.phpcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1109-9518/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjecthydrophobic surfaceen
dc.subjectparticle image velocimetryen
dc.subjectboundary conditionen
dc.subjectslip effecten
dc.subjectpipe flowen
dc.titleEffect of Hydrophobic Surface on Velocity Profile of Pipe Flowen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-146802en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:46:43en
sync.item.modts2025.01.17 15:37:11en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Energetický ústavcs
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