Large-Eddy Simulation of Internal Flow through Human Vocal Folds

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F18%3A00005329" target="_blank" >RIV/46747885:24220/18:00005329 - isvavai.cz</a>

Result on the web

<a href="https://www.epj-conferences.org/articles/epjconf/abs/2018/15/contents/contents.html" target="_blank" >https://www.epj-conferences.org/articles/epjconf/abs/2018/15/contents/contents.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/201818002054" target="_blank" >10.1051/epjconf/201818002054</a>

Result language

angličtina

Original language name

Large-Eddy Simulation of Internal Flow through Human Vocal Folds

Original language description

The 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 human-like 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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10102 - Applied mathematics

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

EPJ Web of Conferences

ISBN

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ISSN

2100-014X

e-ISSN

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Number of pages

5

Pages from-to

358-362

Publisher name

EDP Sciences

Place of publication

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Event location

Mikulov

Event date

Jan 1, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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