Experimental study of the fluid-structure-acoustic interaction in a human voice model
Kniesburges S, Becker S, Müller S, Delgado A, Link G, Kaltenbacher M, Döllinger M (2008)
Publication Type: Conference contribution
Publication year: 2008
Edited Volumes: Proceedings - European Conference on Noise Control
Pages Range: 5131-5136
Conference Proceedings Title: Proceedings - European Conference on Noise Control
Event location: Paris, Frankreich
URI: http://webistem.com/acoustics2008/acoustics2008/cd1/data/articles/002222.pdf
Abstract
For the investigation of the physical processes of the human phonation a fluid-structure-coupled in-vitro model was developed, which constitutes a copy of the human larynx. With that model one was able to reproduce a manlike process of sound production. The model made it possible to enforce extensive observations of the flow-induced vocal fold vibrations. Many measurement techniques were applied as high-speed flow visualization, particle image velocimetry (PIV) of the time-dependent flow field, unsteady pressure measurement, vibration measurement by a laser-scanning vibrometer as well as the measurement of the acoustic field. Furthermore correlations were done between the acoustic field, the flow velocity and the displacement of the vocal fold models. The results support the existence of the Coanda-effect during phonation. The flow attaches to one vocal fold just past the glottis and forms a spacious vortex behind the vocal folds. That behavior is not linked to one vocal fold and changes stochastically from cycle to cycle. The sound production is presumed to be produced by oscillations of the vocal folds and therefore by the involved oscillating volume flow rate.
Authors with CRIS profile
Stefan Kniesburges
Technische Fakultät
Stefan Becker
Technische Fakultät
Stefan Müller
Technische Fakultät
Antonio Delgado
Lehrstuhl für Strömungsmechanik (LSTM)
Manfred Kaltenbacher
Technische Fakultät
Michael Döllinger
Professur für Computational Medicine (DFG-Forschungsprofessur)
How to cite
APA:
Kniesburges, S., Becker, S., Müller, S., Delgado, A., Link, G., Kaltenbacher, M., & Döllinger, M. (2008). Experimental study of the fluid-structure-acoustic interaction in a human voice model. In Proceedings - European Conference on Noise Control (pp. 5131-5136). Paris, Frankreich, FR.
MLA:
Kniesburges, Stefan, et al. "Experimental study of the fluid-structure-acoustic interaction in a human voice model." Proceedings of the 7th European Conference on Noise Control 2008 (EURONOISE 2008), Paris, Frankreich 2008. 5131-5136.
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