Numerical Simulations Of Three Dimensional Glottis Flows |
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| Authors: | Jens Klostermann Rüdiger Schwarze Michael Triep Christoph Brücker |
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| Institution: | Institut für Mechanik und Fluiddynamik, Lampadiusstrasse 4, 09596 Freiberg, Germany |
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| Abstract: | 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) |
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