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Numerical simulation of compressible flow with low Mach number through oscillationg glottis
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SYSNO ASEP 0310503 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Numerical simulation of compressible flow with low Mach number through oscillationg glottis Title Numerická simulace stlačitelného proudění s nízkým Machovým číslem skrz oscilující štěrbinu Author(s) Punčochářová, Petra (UT-L) RID
Fürst, J. (CZ)
Kozel, Karel (UT-L) RID
Horáček, Jaromír (UT-L) RID, ORCIDSource Title Flow-Induced Vibration. - Praha : Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v. v. i., 2008 / Zolotarev I. ; Horáček J. - ISBN 80-87012-12-7 Pages s. 135-140 Number of pages 6 s. Action International Conference on Flow Induced Vibration /9./ FIV2008 Event date 30.06.2008-03.07.2008 VEvent location Praha Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords aeroelasticity ; finite volume method ; oscilating flow Subject RIV BI - Acoustics R&D Projects IAA200760613 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation The work deals with the numerical solution of 2D unsteady compressible viscous flows in a symmetric channel for a low inlet airflow velocity. The unsteadiness of the flow is caused by a prescribed periodic motion of a part of the channel wall with large amplitudes, nearly closing the channel during the oscillations. The flow in the channel can represent a simplified model of airflow coming from the trachea, through the glottal region with periodically vibratin vocal folds to the human vocal tract. The numerical solution is realized by finite volume method and the explicit predictor-corrector MacCormack scheme with Jameson artificial viscosity using a grid of quadrilateral cells. The moved grid of quadrilateral cells is considered in the form of conservation laws using Arbitrary Lagrangian-Eulerian method. 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 2009
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