Measurement of flow separation in a human vocal folds model - ENSTA Paris - École nationale supérieure de techniques avancées Paris Access content directly
Journal Articles Experiments in Fluids Year : 2011

Measurement of flow separation in a human vocal folds model

Abstract

The paper provides experimental data on flow separation from a model of the human vocal folds. Data were measured on a four times scaled physical model, where one vocal fold was fixed and the other oscillated due to fluid-structure interaction. The vocal folds were fabricated from silicone rubber and placed on elastic support in the wall of a transparent wind tunnel. A PIV system was used to visualize the flow fields immediately downstream of the glottis and to measure the velocity fields. From the visualizations, the position of the flow separation point was evaluated using a semiautomatic procedure and plotted for different airflow velocities. The separation point position was quantified relative to the orifice width separately for the left and right vocal folds to account for flow asymmetry. The results indicate that the flow separation point remains close to the narrowest cross-section during most of the vocal fold vibration cycle, but moves significantly further downstream shortly prior to and after glottal closure.
Fichier principal
Vignette du fichier
SDCC.pdf (864 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-00838870 , version 1 (11-05-2017)

Licence

Attribution

Identifiers

Cite

Petr ŠŠidlof, Olivier Doaré, Olivier Cadot, Antoine Chaigne. Measurement of flow separation in a human vocal folds model. Experiments in Fluids, 2011, 51 (1), pp.123-136. ⟨10.1007/s00348-010-1031-9⟩. ⟨hal-00838870⟩

Collections

ENSTA ENSTA_UME
56 View
190 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More