Simulation of interaction of compressible flow with elastic structures with applications to vibrations of human vocal folds

0365032 - ÚT 2012 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Feistauer, M. - Kosík, A. - Kučera, V. - Prokopová, J. - Horáček, Jaromír
Simulation of interaction of compressible flow with elastic structures with applications to vibrations of human vocal folds.
Numerical Analysis and Applied Mathematics ICNAAM 2011. MELVILLE: American Institute of Physics, 2011 - (Simos, T.; Psihoyios, G.), s. 62-65. ISBN 978-0-7354-0956-9.
[International Conference on Numerical Analysis and Applied Mathematics (ICNAAM 2011) /9./. Halkidiki (GR), 19.09.2011-25.09.2011]
Grant CEP: GA ČR(CZ) GAP101/11/0207
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: compressible Navier-Stokes equations * time dependend domain * coupled problem * flow through human vocal folds
Kód oboru RIV: BI - Akustika a kmity

The paper is concerned with the numerical solution of interaction of compressible flow with elastic structures. The aim of this work is the simulation of air flow in human vocal folds during phonation. The compressible Navier-Stokes equations written in the ALE form, equipped with initial and boundary conditions, are discretized by the discontinuous Galerkin finite element method. The deformation of an elastic body, caused by aeroelastic forces, is described by the dynamical elasticity equations. This system is discretized with the aid of the conforming finite element method. The coupling of the flow and elastic structures is carried out via transmission conditions on a common part of the boundary. The developed method is applied to the simulation of flow induced vibtrations of vocal folds during phonation. The result of numerical experiments are presented.
Trvalý link: http://hdl.handle.net/11104/0200372