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首页> 外文期刊>Acta Technica >Coherent structures in the flow inside a model of the human vocal tract with self-oscillating vocal folds
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Coherent structures in the flow inside a model of the human vocal tract with self-oscillating vocal folds

机译：具有自激声带的人类声道模型内部流动的连贯结构

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摘要

The measurement of the airflow in a specially developed 1:1 scaled complex physical model of the voice production is described. This model consists of simplified models of the trachea, the self-oscillating vocal folds and the vocal tract with acoustical spaces that correspond to the vowel [a:]. The measurement set-up enabled to use the Particle Image Velocimetry (PIV) method for description of the airflow-pattern and synchronous vocal fold vibration visualization, acoustic and pressure measurements. The results are presented for the subglottal pressure and airflow rates in the range of normal human phonation. Especially, Coanda effect of the glottal jet and coherent structures showing large eddies in the glottal region of the vocal tract are studied.
机译：描述了在语音产品的专门开发的1：1比例复杂物理模型中对气流的测量。该模型由气管，自激声带和具有对应于元音[a：]的声学空间的声道的简化模型组成。该测量设置能够使用粒子图像测速（PIV）方法来描述气流模式和同步声折振动可视化，声学和压力测量。给出了正常人发声范围内的声门下压力和气流速率的结果。尤其是，研究了声门喷射的柯恩达效应和在声道的声门区域显示出大涡流的连贯结构。

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