Influence of collision on the flow through in-vitro rigid models of the vocal folds
Influence of collision on the flow through in-vitro rigid models of the vocal folds
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DOI：
10.1121/1.1625933
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发表时间：
2003-12-01
影响因子：
2.4
通讯作者：
Hirschberg, A
中科院分区：
文献类型：
--
作者：
Deverge, M;Pelorson, X;Hirschberg, A
振动刚性复制品的声带压力的测量。复制品上游的压力被用作各种理论近似的输入，以预测声门内的压力。当声带碰撞时，经典的准定常边界层理论失效。然而，对于生理上合理形状的复制品，粘性效应比由于壁运动引起的流动不稳定性的影响更重要。一个简单的模型的基础上准定常的伯努利方程修正粘性效应，结合一个简单的边界层分离模型没有全局预测所观察到的压力行为。(C)2003年美国声学学会。
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. (C) 2003 Acoustical Society of America.