Impact of the sub-grid scale turbulence model in aeroacoustic simulation of human voice
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F21%3A00542861" target="_blank" >RIV/61388998:_____/21:00542861 - isvavai.cz</a>
Alternative codes found
RIV/46747885:24220/21:00008422 RIV/68407700:21220/21:00364944
Result on the web
<a href="https://www.mdpi.com/2076-3417/11/4/1970" target="_blank" >https://www.mdpi.com/2076-3417/11/4/1970</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/app11041970" target="_blank" >10.3390/app11041970</a>
Alternative languages
Result language
angličtina
Original language name
Impact of the sub-grid scale turbulence model in aeroacoustic simulation of human voice
Original language description
In an aeroacoustic simulation of human voice production, the effect of the sub-grid scale (SGS) model on the acoustic spectrum was investigated. In the first step, incompressible airflow in a 3D model of larynx with vocal folds undergoing prescribed two-degree-of-freedom oscillation was simulated by laminar and Large-Eddy Simulations (LES), using the One-Equation and Wall-Adaptive Local-Eddy (WALE) SGS models. Second, the aeroacoustic sources and the sound propagation in a domain composed of the larynx and vocal tract were computed by the Perturbed Convective Wave Equation (PCWE) for vowels [u:] and [i:]. The results show that the SGS model has a significant impact not only on the flow field, but also on the spectrum of the sound sampled 1 cm downstream of the lips. With the WALE model, which is known to handle the near-wall and high-shear regions more precisely, the simulations predict significantly higher peak volumetric flow rates of air than those of the One-Equation model, only slightly lower than the laminar simulation. The usage of the WALE SGS model also results in higher sound pressure levels of the higher harmonic frequencies.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10307 - Acoustics
Result continuities
Project
<a href="/en/project/GA19-04477S" target="_blank" >GA19-04477S: Modelling and measurements of fluid-structure-acoustic interactions in biomechanics of human voice production</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Sciences-Basel
ISSN
2076-3417
e-ISSN
2076-3417
Volume of the periodical
11
Issue of the periodical within the volume
4
Country of publishing house
CH - SWITZERLAND
Number of pages
20
Pages from-to
1970
UT code for WoS article
000632145000001
EID of the result in the Scopus database
2-s2.0-85102111636