The comparison of different acoustic approaches in the simulation of human phonation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F17%3A00312246" target="_blank" >RIV/68407700:21220/17:00312246 - isvavai.cz</a>
Result on the web
<a href="http://congress.cimne.com/coupled2017/frontal/Doc/Ebook2017.pdf" target="_blank" >http://congress.cimne.com/coupled2017/frontal/Doc/Ebook2017.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The comparison of different acoustic approaches in the simulation of human phonation
Original language description
This contribution deals with mathematical modelling and numerical simulation of the human phonation process. This phenomena is described as a coupled problem composed of the three mutually coupled physical fields: the deformation of elastic body, the fluid flow and the acoustics. For the sake of simplicity only a two-dimensional model problems is considered in this paper. The fluid-structure interaction problem is described by the incompressible Navier-Stokes equations, by the linear elasticity theory and by the interface conditions. In order to capture the motion of the fluid domain the arbitrary Lagrangian-Eulerian method is used. The strongly coupled partitioned scheme is used for solution of the coupled fluid-structure problem. For solution of acoustics the acoustic analogies are used. Two analogies are compared - the Lighthill analogy and convected perturbation wave equation. The influence of acoustic field back to fluid as well as to structure is neglected. The numerical approximation of all three physical domains is performed with the aid of the finite element method. The numerical results present sound propagation through the model of the vocal tract.
Czech name
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Czech description
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Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Coupled Problems in Science and Engineering VII
ISBN
978-84-946909-2-1
ISSN
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e-ISSN
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Number of pages
12
Pages from-to
661-672
Publisher name
International Center for Numerical Methods in Engineering (CIMNE)
Place of publication
Barcelona
Event location
Rhodos
Event date
Jun 12, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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