Comparison of glottal flow rate characteristics based on experimental and computational data

Area of Science:

• Acoustics
• Computational Fluid Dynamics
• Biomechanics

Background:

• Intraglottal vortices are a phenomenon within the vocal folds during phonation.
• Previous computational models have suggested these vortices do not influence vocal fold closure.
• Experimental validation is crucial for assessing the accuracy of computational models in acoustics and biomechanics.

Purpose of the Study:

• To evaluate the consistency of computational model results with experimental data regarding intraglottal vortices.
• To determine the significance of intraglottal vortices in the vocal fold closing mechanism.

Main Methods:

• Comparison of results from a computational model by Farahani and Zhang (2014) with published experimental data.
• Analysis of the impact of intraglottal vortices on vocal fold dynamics.

Main Results:

• The computational model's conclusion that intraglottal vortices do not affect vocal fold closure contradicts existing experimental findings.
• Discrepancies between the model and experimental data suggest potential limitations in the computational approach.

Conclusions:

• The validity of computational models claiming intraglottal vortices are insignificant requires further scrutiny.
• Experimental data indicates a potential role for intraglottal vortices in vocal fold mechanics that current models may not capture.