Numerical solutions of unsteady flows with low inlet Mach numbers

Petra Punčochářová-Pořízková, Jiří Fürst, Jaromír Horáček and Karel Kozel

Mathematics and Computers in Simulation (MATCOM), 2010, vol. 80, issue 8, 1795-1805

Abstract: This study deals with a numerical solution of a 2D unsteady flow of a compressible viscous fluid in a channel for 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 oscillations. The channel is a simplified model of the glottal space in the human vocal tract and the flow can represent a model of airflow coming from the trachea, through the glottal region with periodically vibrating vocal folds, and to the human vocal tract.

Keywords: CFD; Finite volume method; Unsteady flow; Low Mach number; Viscous compressible fluid (search for similar items in EconPapers)
Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:80:y:2010:i:8:p:1795-1805

DOI: 10.1016/j.matcom.2009.12.006

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