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Aerodynamic Transfer of Energy to Vibrating Vocal Folds for Different Driving Mechanisms

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F19%3A00329625" target="_blank" >RIV/68407700:21220/19:00329625 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.it.cas.cz/fm/im/im/proceeding/2019/27" target="_blank" >http://www.it.cas.cz/fm/im/im/proceeding/2019/27</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.14311/TPFM.2019.027" target="_blank" >10.14311/TPFM.2019.027</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Aerodynamic Transfer of Energy to Vibrating Vocal Folds for Different Driving Mechanisms

  • Original language description

    This paper studies the mutual energy transfer between the fluid flow, described by incompressible Navier-Stokes equations, and the elastic body represented by vocal folds. The aerodynamic energy transfer function describes the amount and more importantly the sign of the energy exchange. It determines if the vocal fold vibrations are self-excited or prescribed. The energy transfer function is studied for three different driving mechanisms introduced by different inlet boundary conditions (BC). The most frequently used inlet BCs for incompressible model of fluid flow approximated by the finite element method are either Dirichlet BC giving the inlet velocity or do-nothing type of BC prescribing the pressure difference between the inlet and the outlet. Since the numerical simulations with both aforementioned BCs do not provide results observed experimentally the newly introduced BC based on the penalization approach seems as remedy. The numerical model consists of strongly coupled partitioned scheme based on the stabilized finite element method.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    10305 - Fluids and plasma physics (including surface physics)

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Proceedings Topical Problems of Fluid Mechanics 2019

  • ISBN

    978-80-87012-69-7

  • ISSN

    2336-5781

  • e-ISSN

  • Number of pages

    8

  • Pages from-to

    197-204

  • Publisher name

    Institute of Thermomechanics, AS CR, v.v.i.

  • Place of publication

    Prague

  • Event location

    Praha

  • Event date

    Feb 20, 2019

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000519337800027