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Numerical Simulations Of Three Dimensional Glottis Flows
Author(s) -
Klostermann Jens,
Schwarze Rüdiger,
Triep Michael,
Brücker Christoph
Publication year - 2008
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200810619
Subject(s) - glottis , mechanics , vortex , transient (computer programming) , flow (mathematics) , inflow , computer simulation , vocal folds , computational fluid dynamics , work (physics) , geology , physics , computer science , anatomy , thermodynamics , medicine , larynx , operating system
A detailed numerical investigation of the transient three dimensional flow downstream of the human glottis is performed. For the present work a threefoldly scaled up realistic static model of the vocal folds and a transient inflow function, which is obtained from experimental data is applied to the CFD model. In the numerical simulations transient flow features like forming ring vortexes and axis switching are resolved which are also known for elliptical and rectangular jets. Similar structures can also be identified in the results of the time–resolved PIV measurements. The influence of the ventricular folds and the geometrical variation of the glottis contacts are also considered in the numerical study. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)