Large-Eddy Simulation of Internal Flow through Human Vocal Folds

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dc.contributor.authorLasota, Martincs
dc.contributor.authorŠidlof, Petrcs
dc.date.accessioned2018-09-25T12:18:44Z
dc.date.available2018-09-25T12:18:44Z
dc.date.issued2018cs
dc.description.abstractThe phonatory process occurs when air is expelled from the lungs through the glottis and the pressure drop causes flow-induced oscillations of the vocal folds. The flow fields created in phonation are highly unsteady and the coherent vortex structures are also generated. For accuracy it is essential to compute on humanlike computational domain and appropriate mathematical model. The work deals with numerical simulation of air flow within the space between plicae vocales and plicae vestibulares. In addition to the dynamic width of the rima glottidis, where the sound is generated, there are lateral ventriculus laryngis and sacculus laryngis included in the computational domain as well. The paper presents the results from OpenFOAM which are obtained with a large-eddy simulation using second-order finite volume discretization of incompressible Navier-Stokes equations. Large-eddy simulations with different subgrid scale models are executed on structured mesh. In these cases are used only the subgrid scale models which model turbulence via turbulent viscosity and Boussinesq approximation in subglottal and supraglottal area in larynx.en
dc.format.extent5cs
dc.identifier.doihttps://doi.org/10.1051/epjconf/201818002054
dc.identifier.issn21016275cs
dc.identifier.urihttps://dspace.tul.cz/handle/15240/31860
dc.identifier.urihttps://www.epj-conferences.org/articles/epjconf/pdf/2018/15/epjconf_efm2018_02054.pdf
dc.language.isoengcs
dc.publisherLes Ulis: EDP Sciencescs
dc.relation.ispartofseries1cs
dc.relation.urihttps://www.epj-conferences.org/articles/epjconf/abs/2018/15/contents/contents.htmlcs
dc.rights.SHERPA/RoMEOEPJ Web of Conferences [1] (ESSN: 2100-014X) This is a RoMEO blue journal author can archive publisher's version/PDF
dc.subjectOpenFOAMcs
dc.subjectturbulent flowcs
dc.subjectvocal foldscs
dc.titleLarge-Eddy Simulation of Internal Flow through Human Vocal Foldsen
dc.titleLarge-Eddy Simulation of Internal Flow through Human Vocal Foldscs
local.citation.epage358-362cs
local.citation.spage358-362cs
local.identifier.publikace5329
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