Sixth International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2009)

Florence, Italy
December 14-16, 2009

Mathematical Modelling of Airflow in the Glottal Region and its Comparison with Experimental Data

Jaromír Horáček, S. Gráf

Institute of Thermomechanics of the Academy of Sciences, Prague, Czech Republic

Finite element method (FEM) was used for numerical simulation of the airflow field in a simplified model of the human vocal tract for vowel /a:/ with prescribed periodic oscillations of the vocal folds. The viscous fluid is modeled by 2D compressible Navier-Stokes equations in Arbitrary Lagrangian- Eulerian (ALE) formulation and considering the turbulence. The computed flow field pattern is compared with the original experimental results obtained by Particle Image Velocimetry (PIV) method.

Index Terms. FEM, compressible Navier-Stokes equations, ALE method, k-ε turbulence model, PIV

Full Paper (reprinted with permission from Firenze University Press)

Bibliographic reference.  Horáček, Jaromír / Gráf, S. (2009): "Mathematical modelling of airflow in the glottal region and its comparison with experimental data", In MAVEBA-2009, 203-206.