Original title: Numerical comparison of unsteady compressible viscous flow in convergent channel
Authors: Pořízková, P. ; Kozel, Karel ; Horáček, Jaromír
Document type: Papers
Conference/Event: Application of Mathematics 2012, Prague (CZ), 2012-05-02 / 2012-05-05
Year: 2012
Language: eng
Abstract: This study deals with a numerical solution of a 2D flows a compressible viscous fluids in a convergent channel for low inlet airflow velocity. Three governing systems – Full system, Adiabatic system, Iso-energetic system based on the Navier-Stokes equations for laminar flow are tested. The numerical solution is realized by finite volume method and the predictor-corrector MacCormack scheme with Jameson artificial viscosity using a gird of quadrilateral cells. This unsteady grid of quadrilateral cells is considered in the form of conservation laws using Arbitrary Lagrangian-Eulerian method. The numerical results, acquired from a developed program. Are presented for inlet velocity ûĄ = 4,12ms-1 and Reynolds number Re = 4 x 103.
Keywords: biomechanics of voice; finite volume method; simulation of flow in vibrating glottis
Project no.: CEZ:AV0Z20760514 (CEP), GAP101/11/0207 (CEP)
Funding provider: GA ČR
Host item entry: Application of Mathematics 2012, ISBN 978-80-85823-60-8

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/11104/0209180

Permalink: http://www.nusl.cz/ntk/nusl-113366


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