Numerical simulation of flow-induced sound in human voice production

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F13%3A00395680" target="_blank" >RIV/61388998:_____/13:00395680 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.proeng.2013.08.024" target="_blank" >http://dx.doi.org/10.1016/j.proeng.2013.08.024</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.proeng.2013.08.024" target="_blank" >10.1016/j.proeng.2013.08.024</a>

Result language

angličtina

Original language name

Numerical simulation of flow-induced sound in human voice production

Original language description

The aeroacoustic mechanisms in human voice production are complex coupled processes, which are not fully understood until now. The paper presents a hybrid numerical approach to the solution of the acoustic field in human vocal tract, when the fluid flowis first solved by a dedicated CFD solver on a fine computational mesh covering the larynx. Subsequently, the acoustic sources and propagation of the sound waves are calculated by Lighthill's analogy or acoustic perturbation equations on a coarse mesh covering the whole vocal tract including radiation region. The CFD simulation was run in parallel on a SGI Altix UV shared-memory supercomputer; strong and weak parallel performance was tested for up to 50 computational cores. The spectra of the radiated sound for two vowels/i/and/u/evaluated from the acoustic simulation show good agreement with the formant frequencies known from human subjects.

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

Procedia Engineering

ISSN

1877-7058

e-ISSN

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Volume of the periodical

61

Issue of the periodical within the volume

2013

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

333-340

UT code for WoS article

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EID of the result in the Scopus database

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