Article Dans Une Revue Journal of the Acoustical Society of America Année : 2013

The influence of glottal cross-section shape on theoretical flow models

Résumé

Physical and mathematical phonation models commonly rely on a quasi-one-dimensional flow model. The assumption of quasi-one-dimensional flow through a glottis with fixed length is analyzed for different cross-section shapes: Circle, rectangle, ellipse, and circular segment. A simplified flow model is formulated which accounts for kinetic losses, viscosity, and cross-section shape. It is seen that the cross-section shape cannot be neglected since it alters boundary layer development and hence the viscous contribution to the pressure drop across the glottis. The commonly applied quasi-one-dimensional flow model is shown to be inaccurate, indicating the potential benefit of taking into account the cross-section shape.

Fichier non déposé

Dates et versions

hal-00850148 , version 1 (04-08-2013)

Identifiants

Citer

Bo Wu, Annemie van Hirtum, Xavier Pelorson, Xiaoyu Luo. The influence of glottal cross-section shape on theoretical flow models. Journal of the Acoustical Society of America, 2013, 134 (2), pp.909-912. ⟨10.1121/1.4813397⟩. ⟨hal-00850148⟩
176 Consultations
0 Téléchargements

Altmetric

Partager

  • More