Numerical solution of compressible subsonic flows in 3D channel

0399628 - ÚT 2014 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Pořízková, P. - Kozel, K. - Horáček, Jaromír
Numerical solution of compressible subsonic flows in 3D channel.
Interaction and Feedbacks 2013. Prague: Institute of Thermomechanics ASCR, v. v. i., 2013 - (Zolotarev, I.), s. 37-42. ISBN 978-80-87012-49-9.
[Interaction and Feedbacks 2013 /20./. Prague (CZ), 26.11.2013-27.11.2013]
Grant CEP: GA ČR(CZ) GAP101/11/0207
Institucionální podpora: RVO:61388998
Klíčová slova: finite volume method * aeroacoustics * Navier-Stokes equations
Kód oboru RIV: BI - Akustika a kmity

The channels shape is a simplified geometry of the glottal space in the human vocal tract. Goal is numerical simulation of flow in the channels which involves attributes of real flow causing acoustic perturbations. The system of Navier-Stokes equations closed with static pressure expression for ideal gas describes the unsteady laminar flow of compressible viscous fluid. The numerical solution is implemented using the finite volume method and the predictor-corrector MacCormack scheme with artificial viscosity using a grid of quadrilateral cells. The unsteady grid of quadrilateral cells is considered in the form of conservation laws using Arbitrary Lagrangian-Eulerian method.
Trvalý link: http://hdl.handle.net/11104/0228687