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ŠVANCARA, P. HORÁČEK, J. HÁJEK, P. MATUG, M. ŠVEC, J.G.
Originální název
Comparing the Use of Compressible and Incompressible Flow in the FE Mode lof Human Vocal Folds Self-oscillation
Typ
abstrakt
Jazyk
angličtina
Originální abstrakt
In this study a three-dimensional (3D) finite element (FE) model of the flow-induced self-oscillation of the human vocal folds in interaction with air in a simplified vocal tract model is presented. The 3D vocal tract model of the acoustic spaces for Czech vowel [a:] was created by converting the data from the magnetic resonance images (MRI). The developed FE model includes fluid-structure interaction, morphing the fluid mesh according to the vocal-fold motion, unsteady viscous compressible/incompressible airflow described by the Navier-Stokes equations, airflow separation during the glottis closure, large deformations of the vocal-fold tissue and vocal-fold contact. The aim of this work is to analyze the effect of compressible and incompressible flow model on produced air pressure fluctuations and on vibrations of the vocal folds using the identical FE mesh and boundary conditions.
Klíčová slova
Biomechanics of voice, Fluid-structure-acoustic interaction, Finite element method, Navier-Stokes equations
Autoři
ŠVANCARA, P.; HORÁČEK, J.; HÁJEK, P.; MATUG, M.; ŠVEC, J.G.
Vydáno
11. 5. 2015
Nakladatel
Institute of Theoretical and Applied Mechanics ASCR
Místo
Svratka
ISBN
978-80-86246-42-0
Kniha
Engineering mechanics 2015
Strany od
306
Strany do
307
Strany počet
2
BibTex
@misc{BUT121911, author="Pavel {Švancara} and Jaromír {Horáček} and Petr {Hájek} and Michal {Matug} and Jan G. {Švec}", title="Comparing the Use of Compressible and Incompressible Flow in the FE Mode lof Human Vocal Folds Self-oscillation", booktitle="Engineering mechanics 2015", year="2015", pages="306--307", publisher="Institute of Theoretical and Applied Mechanics ASCR", address="Svratka", isbn="978-80-86246-42-0", note="abstract" }