Study of spatiotemporal liquid dynamics in a vibrating vocal fold by using a self-oscillating poroelastic model
| Autor: | Austin Scholp, Seth H. Dailey, Xiaojun Liu, Jack J. Jiang, Caroline Jeddeloh, Chao Tao |
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| Rok vydání: | 2020 |
| Předmět: |
Speech Communication
Materials science Acoustics and Ultrasonics Poromechanics Isotropy Vocal Cords Fold (geology) Mechanics Models Biological Vibration Liquid dynamics medicine.anatomical_structure Phonation Arts and Humanities (miscellaneous) Mucosal wave Vocal folds Vertical direction Hydrodynamics otorhinolaryngologic diseases medicine Humans Porosity Laryngeal disease |
| Zdroj: | J Acoust Soc Am |
| ISSN: | 0001-4966 |
| DOI: | 10.1121/10.0002163 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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