Original title: Numerical computation and comparison of low Mach number flow in a channel
Authors: Pořízková, P. ; Kozel, K. ; Horáček, Jaromír
Document type: Papers
Conference/Event: Topical problems of fluid mechanics 2011, Prague (CZ), 2011-02-16 / 2011-02-17
Year: 2011
Language: eng
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. The authors present unsteady numerical solutions of flow in two similar computational domains. The numerical results are presented for inlet Mach number MĄ = 0.012, Reynolds number Re = 4481 and the wall motion frequency 100 Hz.
Keywords: biomechanics of voice; finite volume method; unsteady Navier-Stokes equations
Project no.: CEZ:AV0Z20760514 (CEP), GAP101/11/0207 (CEP)
Funding provider: GA ČR
Host item entry: Conference Topical Problems of Fluid Mechanics 2011, ISBN 978-80-87012-32-1

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0195222

Permalink: http://www.nusl.cz/ntk/nusl-42709


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers