Publication detail

Comparing the Use of Compressible and Incompressible Flow in the FE Mode lof Human Vocal Folds Self-oscillation

ŠVANCARA, P. HORÁČEK, J. HÁJEK, P. MATUG, M. ŠVEC, J.G.

Original Title

Comparing the Use of Compressible and Incompressible Flow in the FE Mode lof Human Vocal Folds Self-oscillation

Type

abstract

Language

English

Original Abstract

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.

Keywords

Biomechanics of voice, Fluid-structure-acoustic interaction, Finite element method, Navier-Stokes equations

Authors

ŠVANCARA, P.; HORÁČEK, J.; HÁJEK, P.; MATUG, M.; ŠVEC, J.G.

Released

11. 5. 2015

Publisher

Institute of Theoretical and Applied Mechanics ASCR

Location

Svratka

ISBN

978-80-86246-42-0

Book

Engineering mechanics 2015

Pages from

306

Pages to

307

Pages count

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"
}