Compressible flows of viscous fluid in 3D channel

0439030 - ÚT 2016 RIV CH eng C - Conference Paper (international conference)
Pořízková, P. - Kozel, Karel - Horáček, Jaromír
Compressible flows of viscous fluid in 3D channel.
Numerical Mathematics and Advanced Applications - ENUMATH 2013. Lausanne: Springer International Publishing, 2015 - (Abdulle, A.; Deparis, S.), s. 661-666. Lecture Notes in Computational Science and Engineering, 103. ISBN 978-3-319-10704-2. ISSN 1439-7358.
[ENUMATH 2013 - European Conference on Numerical Mathematics and Advanced Applications /10./. Lausanne (CH), 26.08.2013-30.08.2013]
R&D Projects: GA ČR(CZ) GAP101/11/0207
Institutional support: RVO:61388998
Keywords : laminar unsteady * numerical simulation * finite volume method
Subject RIV: BI - Acoustics

This study deals with the numerical solution of a 3D compressible flow of a viscous fluid in a channel for low inlet airflow velocity. The channel is a simplified model of the glottal space in the human vocal tract. The system of Navier-Stokes equations has been used as mathematical model of laminar flow of the compressible viscous fluid in a domain. The numerical solution is implemented using the finite volume method (FVM) and the predictor-corrector MacCormack scheme with artificial viscosity using a grid of hexahedral cells. The numerical simulations of flow fields in the channel, acquired from a developed program, are presented for inlet velocity u∞ = 4,12 m/s and Reynolds number Re∞ = 4.481.
Permanent Link: http://hdl.handle.net/11104/0246346