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Finite Element Modeling of Airflow During Phonation
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SYSNO ASEP 0346817 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Finite Element Modeling of Airflow During Phonation Author(s) Šidlof, P. (CZ)
Lunéville, E. (FR)
Chambeyron, C. (FR)
Doaré, O. (FR)
Chaigne, A. (FR)
Horáček, Jaromír (UT-L) RID, ORCIDSource Title Applied and Computational Mechanics - ISSN 1802-680X
Roč. 4, č. 1 (2010), s. 121-132Number of pages 12 s. Language eng - English Country CZ - Czech Republic Keywords vocal folds ; airflow ; numerical modeling ; ALE ; flow separation Subject RIV BI - Acoustics R&D Projects KJB200760801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation In the paper a mathematical model of airflow in human vocal folds is presented. The geometry of the glottal channel is excised human larynges. The airflow is modeled by nonstationary incompressible Navier-Stokes equations in a 2D computational domain, which is deformed in time due to vocal fold vibration. The paper presents numerical results and focuses on flow separation in glottis. Quantitative data from numerical simulations are compared to results of measurements by Particle Image Velocimetry (PIV), performed on a scaled self-oscillating physical model of vocal folds. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2011
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