A computational study of the effect of intraglottal vortex-induced negative pressure on vocal fold vibration | Zendy

Mehrdad H. Farahani | Zendy; Zhaoyan Zhang | Zendy

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A computational study of the effect of intraglottal vortex-induced negative pressure on vocal fold vibration

Author(s) -

Mehrdad H. Farahani,

Zhaoyan Zhang

Publication year - 2014

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.4898743

Subject(s) - elastic recoil , articulatory phonetics , vortex , vibration , vocal folds , larynx , vortex induced vibration , suction , acoustics , physics , recoil , mechanics , phonation , fold (higher order function) , materials science , anatomy , medicine , audiology , engineering , mechanical engineering , atomic physics , lung , meteorology

Recent studies reported the formation of intraglottal vortices for medium and high subglottal pressures in excised-larynx experiments, and hypothesized that the suction force created by these vortices might affect vocal fold vibration. However, high subglottal pressures often lead to large vocal fold elastic recoil forces, and it is unclear if the vortex-induced suction force is large enough compared with the elastic recoil force to have noticeable effects on vocal fold vibration. In this study, the validity of this hypothesis was examined using a computational model. The results suggest that intraglottal vortices might only have small effects on vocal fold vibration.

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