Original title: Numerical experiment of compressible flow in convergent channel- pressure spectral analysis
Authors: Pořízková, P. ; Kozel, Karel ; Horáček, Jaromír
Document type: Papers
Conference/Event: Topical Problems of Fluid Mechanics 2012, Praha (CZ), 2012-02-15 / 2012-02-17
Year: 2012
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 flow is described by the system of Navier-Stokes equations for laminar flows. The numerical solution is implemented using the finite volume method (FVM) and the predictor-corrector MacCormack scheme with Jameson artificial viscosity using a gird of quadrilateral cells. The numerical results of unsteady flows in the channel are presented for inlet velocity uĄ = 4.12m/s, inlet Reynolds number ReĄ = 4481 and wall motion frequency 100Hz.
Keywords: finite volume method; Navier-Stokes equations; voice production modeling
Project no.: CEZ:AV0Z20760514 (CEP), GAP101/11/0207 (CEP)
Funding provider: GA ČR
Host item entry: Conference Topical problem of Fluid Mechanics 2012, ISBN 978-80-87012-40-6

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/11104/0207859

Permalink: http://www.nusl.cz/ntk/nusl-112196


The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers