Experimental study of the fluid-structure-acoustic interaction in a human voice model

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Details zur Publikation

Autorinnen und Autoren: Kniesburges S, Becker S, Müller S, Delgado A, Link G, Kaltenbacher M, Döllinger M
Titel Sammelwerk: Proceedings - European Conference on Noise Control
Jahr der Veröffentlichung: 2008
Tagungsband: Proceedings - European Conference on Noise Control
Seitenbereich: 5131-5136
ISSN: 22265147


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.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Becker, Stefan apl. Prof. Dr.
Technische Fakultät
Delgado, Antonio Prof. Dr.-Ing.
Lehrstuhl für Strömungsmechanik
Technische Fakultät
Döllinger, Michael Prof. Dr.
Kniesburges, Stefan PD Dr.-Ing.
Professur für Computational Medicine (DFG-Forschungsprofessur)
Kaltenbacher, Manfred PD Dr.
Technische Fakultät
Müller, Stefan
Technische Fakultät


Zitierweisen

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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