Numerical Approximation of Flow Induced Vibration of Vocal Folds

0361502 - ÚT 2012 RIV DE eng C - Conference Paper (international conference)
Sváček, P. - Horáček, Jaromír
Numerical Approximation of Flow Induced Vibration of Vocal Folds.
BAIL 2010 - Boundary and Interior Layers, Computational and Asymptotic Methods. Berlin: Springer, 2011 - (Clavero, C.; Gracia, J.; Lisbona, F.), s. 227-234. ISBN 978-3-642-19664-5. ISSN 1439-7358.
[BAIL 2010. Zaragoza (ES), 05.07.2010-09.07.2010]
R&D Projects: GA MŠMT OC09019
Institutional research plan: CEZ:AV0Z20760514
Keywords : FEM * fluid-structure interaction * biomechanics of voice
Subject RIV: BI - Acoustics

In this paper the numerical study of a simplified model of airflow through glottal region of the human vocal tract is addressed and the self-oscillating vocal fold is modelled. The main attention is paid to comparison of approximation of a coupled fluid-structure interaction problems to the results of a simplified aeroelastic model publishedearlier. The mathematical model is described by the airflow governed by the 2D incompressible Navier-Stokes equations. The structure vibrations are described with the aid of two-degrees of freedom model. The problem is numerically approximated by finite element method stabilized by Galerkin-Least Squares method, modified for the application on moving domains.
Permanent Link: http://hdl.handle.net/11104/0198803