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Finite Element Modeling of Airflow During Phonation
- 1.0346817 - ÚT 2011 RIV CZ eng J - Journal Article
Šidlof, P. - Lunéville, E. - Chambeyron, C. - Doaré, O. - Chaigne, A. - Horáček, Jaromír
Finite Element Modeling of Airflow During Phonation.
Applied and Computational Mechanics. Roč. 4, č. 1 (2010), s. 121-132. ISSN 1802-680X
R&D Projects: GA AV ČR KJB200760801
Institutional research plan: CEZ:AV0Z20760514
Keywords : vocal folds * airflow * numerical modeling * ALE * flow separation
Subject RIV: BI - Acoustics
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.
Permanent Link: http://hdl.handle.net/11104/0187741
Number of the records: 1