The main purpose of this study is to investigate the spatiotemporal interstitial fluid dynamics in a vibrating vocal fold. A self-oscillating poroelastic model is proposed to study the liquid dynamics in the vibrating vocal folds by treating the vocal fold tissue as a transversally isotropic, fluid-saturated, porous material. Rich spatiotemporal liquid dynamics have been found. Specifically, in the vertical direction, the liquid is transported from the inferior side to the superior side due to the propagation of the mucosal wave. In the longitudinal direction, the liquid accumulates at the anterior-posterior midpoint. However, the contact between the two vocal folds forces the accumulated liquid out laterally in a very short time span. These findings could be helpful for exploring etiology of some laryngeal pathologies, optimizing laryngeal disease treatment, and understanding hemodynamics in the vocal folds.

中文翻译：

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利用自振荡多孔弹性模型研究振动声带中的时空液体动力学

本研究的主要目的是研究振动声带中的时空间质流体动力学。提出了一种自振荡多孔弹性模型，通过将声带组织视为横向各向同性、流体饱和的多孔材料来研究振动声带中的液体动力学。已经发现了丰富的时空液体动力学。具体而言，在垂直方向上，由于粘膜波的传播，液体从下侧输送到上侧。在纵向方向上，液体在前后中点处积聚。然而，两个声带之间的接触迫使积聚的液体在很短的时间内横向流出。这些发现可能有助于探索某些喉部病变的病因，