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The ALE discontinuous Galerkin method for the simulation of air flow through pulsating human vocal folds

Publication at Faculty of Mathematics and Physics |
2010

Abstract

The aim of this work is the simulation of viscous compressible flows in human vocal folds during phonation. The computational domain is a bounded subset of R2, whose geometry mimics the shape of the human larynx.

During phonation, parts of the solid impermeable walls are moving in a prescribed manner, thus simulating the opening and closing of the vocal chords. As the governing equations we take the compressible Navier-Stokes equations in ALE form.

Space semidiscretization is carried out by the discontinuous Galerkin method combined with a linearized semi-implicit approach. Numerical experiments are performed with the resulting scheme.