Subject-specific computational modeling of human phonation

A direct numerical simulation of flow-structure interaction is carried out in a subject-specific larynx model to study human phonation under physiological conditions. The simulation results compare well to the established human data. The resulting glottal flow and waveform are found to be within the...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of the Acoustical Society of America Vol. 135; no. 3; p. 1445
Main Authors: Xue, Qian, Zheng, Xudong, Mittal, Rajat, Bielamowicz, Steven
Format: Journal Article
Language:English
Published: United States 01.03.2014
Subjects:
Adult
Biomechanical Phenomena
Computer Simulation
Humans
Larynx - anatomy & histology
Larynx - diagnostic imaging
Larynx - physiology
Male
Models, Anatomic
Numerical Analysis, Computer-Assisted
Phonation
Pressure
Time Factors
Tomography, X-Ray Computed
Vibration
ISSN:1520-8524, 1520-8524
Online Access:Get more information
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A direct numerical simulation of flow-structure interaction is carried out in a subject-specific larynx model to study human phonation under physiological conditions. The simulation results compare well to the established human data. The resulting glottal flow and waveform are found to be within the normal physiological ranges. The effects of realistic geometry on the vocal fold dynamics and the glottal flow are extensively examined. It is found that the asymmetric anterior-posterior laryngeal configuration produces strong anterior-posterior asymmetries in both vocal fold vibration and glottal flow which has not been captured in the simplified models. It needs to be pointed out that the observations from the current numerical simulation are only valid for the flow conditions investigated. The limitations of the study are also discussed.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1520-8524
1520-8524
DOI:10.1121/1.4864479