Numerical Simulation Study on Airflow Structural Characteristics and Vortex Evolution in Human Mouth-Throat Model
Large eddy simulation was used to simulate the airflow movement and vortex evolution in human mouth-throat model in the conditions of the low intensive respiratory patterns, and the airflow structural characteristic and vortex evolution in mouth-throat model was discussed. The results show that two velocity growth points generated in pharyngeal and laryngeal region; the airflow separates in region near the pharynx and the separation zone appears near the anterior wall of pharynx; A turbulence jet appears in the glottal region and the airflow; the jets formatting in pharynx and laryngeal lead to two vorticity growth regions; flat vortex appeared in the throat; a curved vortex like the trachea wall appeared in the anterior wall of trachea, and nearly symmetric reverse vortex pairs appeared in the trachea.
Bale V. Reddy, Shishir Kumar Sahu, A. Kandasamy and Manuel de La Sen
D. Sun et al., "Numerical Simulation Study on Airflow Structural Characteristics and Vortex Evolution in Human Mouth-Throat Model", Applied Mechanics and Materials, Vol. 627, pp. 115-118, 2014