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Numerical Simulation of Glottal Flow in Interaction with Self Oscillating Vocal Folds: Comparison of Finite Element Approximation with a Simplified Model

Published online by Cambridge University Press:  20 August 2015

P. Sváček  and
J. Horáček
P. Sváček*
Affiliation:
Department of Technical Mathematics, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo nám. 13, Praha 2, 121 35, Czech Republic
J. Horáček*
Affiliation:
Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Dolejškova 5, Praha 8, Czech Republic
*
Corresponding author.Email:Petr.@vacek@fs.cvut.cz
Email:jaromirh@it.cas.cz
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Abstract

In this paper the numerical method for solution of an aeroelastic model describing the interactions of air flow with vocal folds is described. The flow is modelled by the incompressible Navier-Stokes equations spatially discretized with the aid of the stabilized finite element method. The motion of the computational domain is treated with the aid of the Arbitrary Lagrangian Eulerian method. The structure dynamics is replaced by a mechanically equivalent system with the two degrees of freedom governed by a system of ordinary differential equations and discretized in time with the aid of an implicit multistep method and strongly coupled with the flow model. The influence of inlet/outlet boundary conditions is studied and the numerical analysis is performed and compared to the related results from literature.

Keywords

74F1065Z0576D05Finite element methodarbitrary Lagrangian-Eulerian methodbiomechanics of voice production
Type
Research Article
Information
Communications in Computational Physics , Volume 12 , Issue 3 , September 2012 , pp. 789 - 806
Copyright
Copyright © Global Science Press Limited 2012

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References

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