Influence of collision on the flow through in-vitro rigid models of the vocal folds

M. Deverge; X. Pelorson; C.E. Vilain; P.-Y. Lagrée; F.Z. Chentouf; J.F.H. Willems; A. Hirschberg

doi:10.1121/1.1625933

Influence of collision on the flow through in-vitro rigid models of the vocal folds

M. Deverge, X. Pelorson, C.E. Vilain, P.-Y. Lagrée, F.Z. Chentouf, J.F.H. Willems, A. Hirschberg

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Abstract

Measurements of pressure in oscillating rigid replicas of vocal folds are presented. The pressure upstream of the replica is used as input to various theoretical approximations to predict the pressure within the glottis. As the vocal folds collide the classical quasisteady boundary layer theory fails. It appears however that for physiologically reasonable shapes of the replicas, viscous effects are more important than the influence of the flow unsteadiness due to the wall movement. A simple model based on a quasisteady Bernoulli equation corrected for viscous effect, combined with a simple boundary layer separation model does globally predict the observed pressure behavior.

Original language	English
Pages (from-to)	3354-3362
Journal	Journal of the Acoustical Society of America
Volume	114
Issue number	6
DOIs	https://doi.org/10.1121/1.1625933
Publication status	Published - 2003

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title = "Influence of collision on the flow through in-vitro rigid models of the vocal folds",

abstract = "Measurements of pressure in oscillating rigid replicas of vocal folds are presented. The pressure upstream of the replica is used as input to various theoretical approximations to predict the pressure within the glottis. As the vocal folds collide the classical quasisteady boundary layer theory fails. It appears however that for physiologically reasonable shapes of the replicas, viscous effects are more important than the influence of the flow unsteadiness due to the wall movement. A simple model based on a quasisteady Bernoulli equation corrected for viscous effect, combined with a simple boundary layer separation model does globally predict the observed pressure behavior.",

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AU - Deverge, M.

AU - Pelorson, X.

AU - Vilain, C.E.

AU - Lagrée, P.-Y.

AU - Chentouf, F.Z.

AU - Willems, J.F.H.

AU - Hirschberg, A.

PY - 2003

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N2 - Measurements of pressure in oscillating rigid replicas of vocal folds are presented. The pressure upstream of the replica is used as input to various theoretical approximations to predict the pressure within the glottis. As the vocal folds collide the classical quasisteady boundary layer theory fails. It appears however that for physiologically reasonable shapes of the replicas, viscous effects are more important than the influence of the flow unsteadiness due to the wall movement. A simple model based on a quasisteady Bernoulli equation corrected for viscous effect, combined with a simple boundary layer separation model does globally predict the observed pressure behavior.

AB - Measurements of pressure in oscillating rigid replicas of vocal folds are presented. The pressure upstream of the replica is used as input to various theoretical approximations to predict the pressure within the glottis. As the vocal folds collide the classical quasisteady boundary layer theory fails. It appears however that for physiologically reasonable shapes of the replicas, viscous effects are more important than the influence of the flow unsteadiness due to the wall movement. A simple model based on a quasisteady Bernoulli equation corrected for viscous effect, combined with a simple boundary layer separation model does globally predict the observed pressure behavior.

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DO - 10.1121/1.1625933

M3 - Article

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JO - Journal of the Acoustical Society of America

JF - Journal of the Acoustical Society of America

IS - 6

ER -

Influence of collision on the flow through in-vitro rigid models of the vocal folds

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