Název:
Numerical comparison of unsteady compressible viscous flow in convergent channel
Autoři:
Pořízková, P. ; Kozel, Karel ; Horáček, Jaromír Typ dokumentu: Příspěvky z konference Konference/Akce: Application of Mathematics 2012, Prague (CZ), 2012-05-02 / 2012-05-05
Rok:
2012
Jazyk:
eng
Abstrakt: 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.
Klíčová slova:
biomechanics of voice; finite volume method; simulation of flow in vibrating glottis Číslo projektu: CEZ:AV0Z20760514 (CEP), GAP101/11/0207 (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Application of Mathematics 2012, ISBN 978-80-85823-60-8
Instituce: Ústav termomechaniky AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0209180