Finite-element modeling of vocal fold self-oscillations in interaction with vocal tract: Comparison of incompressible and compressible flow model

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dc.contributor.authorHájek, Petrcs
dc.contributor.authorŠvancara, Pavelcs
dc.contributor.authorHoráček, Jaromírcs
dc.contributor.authorŠvec, Jan G.cs
dc.coverage.issue2cs
dc.coverage.volume15cs
dc.date.accessioned2022-03-14T15:56:44Z
dc.date.available2022-03-14T15:56:44Z
dc.date.issued2021-07-08cs
dc.description.abstractFinite-element modeling of self-sustained vocal fold oscillations during voice production has mostly considered the air as incompressible, due to numerical complexity. This study overcomes this limitation and studies the influence of air compressibility on phonatory pressures, flow and vocal fold vibratory characteristics. A two-dimensional finite-element model is used, which incorporates layered vocal fold structure, vocal fold collisions, large deformations of the vocal fold tissue, morphing the fluid mesh according to the vocal fold motion by the arbitrary Lagrangian-Eulerian approach and vocal tract model of Czech vowel [i:] based on data from magnetic resonance images. Unsteady viscous compressible or incompressible airflow is described by the Navier-Stokes equations. An explicit coupling scheme with separated solvers for structure and fluid domain was used for modeling the fluid-structure-acoustic interaction. Results of the simulations show clear differences in the glottal flow and vocal fold vibration waveforms between the incompressible and compressible fluid flow. These results provide the evidence on the existence of the coupling between the vocal tract acoustics and the glottal flow (Level 1 interactions), as well as between the vocal tract acoustics and the vocal fold vibrations (Level 2 interactions).en
dc.formattextcs
dc.format.extent133-152cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationApplied andComputational Mechanics. 2021, vol. 15, issue 2, p. 133-152.en
dc.identifier.doi10.24132/acm.2021.672cs
dc.identifier.issn1802-680Xcs
dc.identifier.other175617cs
dc.identifier.urihttp://hdl.handle.net/11012/203970
dc.language.isoencs
dc.publisherUniversity of West Bohemiacs
dc.relation.ispartofApplied andComputational Mechanicscs
dc.relation.urihttps://www.kme.zcu.cz/acm/acm/article/view/672cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1802-680X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectbiomechanics of voiceen
dc.subjectcompressible flowen
dc.subjectfinite element methoden
dc.subjectfluid-structure-acoustic interactionen
dc.subjectsimulation of phonationen
dc.titleFinite-element modeling of vocal fold self-oscillations in interaction with vocal tract: Comparison of incompressible and compressible flow modelen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-175617en
sync.item.dbtypeVAVen
sync.item.insts2022.03.22 12:53:57en
sync.item.modts2022.03.22 12:14:56en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav mechaniky těles, mechatroniky a biomechanikycs
thesis.grantorVysoké učení technické v Brně. . Přírodovědecká fakultacs
thesis.grantorVysoké učení technické v Brně. . Ústav termomechaniky AV ČRcs
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