Acoustic perturbation equations and Lighthill's acoustic analogy for the human phonation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F13%3A00394350" target="_blank" >RIV/61388998:_____/13:00394350 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1121/1.4799392" target="_blank" >http://dx.doi.org/10.1121/1.4799392</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1121/1.4799392" target="_blank" >10.1121/1.4799392</a>

Result language

angličtina

Original language name

Acoustic perturbation equations and Lighthill's acoustic analogy for the human phonation

Original language description

In speech, air is driven through the larynx by compression of the lungs. Thereby, air flows through the glottis which forces the vocal folds to oscillate which in turn results in a pulsating air flow. This air flow is the main source of the generated sound-the phonation. The acoustic wave then passes through the vocal tract, which acts as a filter modulating the propagated sound leaving the mouth. We model the fluid-structureacoustic interaction with a so called hybrid approach. The air flow in the larynx, together with a prescribed vocal fold motion, is simulated with help of the open source solver OpenFOAM. Based on the resulting fluid field, acoustic source terms and the wave propagation is calculated within the finite element solver CFS++. Two methods are available to choose from, Lighthill's acoustic analogy and an aeroacoustic analogy based on a perturbation ansatz. Additionally, the simulation domain is extended by a realistic but geometrical fixed vocal tract and connected to a

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BI - Acoustics and oscillation

OECD FORD branch

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Project

<a href="/en/project/GAP101%2F11%2F0207" target="_blank" >GAP101/11/0207: Coupled problems of fluid and solid mechanics - nonlinear aeroelasticity</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

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

Name of the periodical

Proceedings of Meetings on Acoustics -ICA 2013

ISSN

1939-800X

e-ISSN

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Volume of the periodical

19

Issue of the periodical within the volume

060309

Country of publishing house

CA - CANADA

Number of pages

8

Pages from-to

1-8

UT code for WoS article

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EID of the result in the Scopus database

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