Title :
A numerical simulation of airflow in human bronchial passages during high-frequency ventilation
Author :
Kulkarni, A. ; Meyers, J. ; McHugh, P.
Author_Institution :
Dept. of Mech. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
The flow of air in the first four generations of the tracheobronchial tree is simulated using a 2-D, fluid mechanical model and numerical computations. Results are obtained for an asymmetric breathing cycle used in high-frequency ventilation. Computed flow patterns show interesting features including flow recirculation, preferred direction of flow in bifurcating tubes, and a net shear stress toward the expiratory direction
Keywords :
lung; physiological models; pneumodynamics; 2D fluid mechanical model; airflow; asymmetric breathing cycle; bifurcating tubes; expiratory direction; first four generations; flow recirculation; high-frequency ventilation; human bronchial passages; net shear stress; numerical computations; numerical simulation; preferred direction; tracheobronchial tree; Bifurcation; Boundary conditions; Equations; Finite element methods; Humans; Lungs; Numerical simulation; Software packages; Ventilation; Viscosity;
Conference_Titel :
Bioengineering Conference, 1990., Proceedings of the 1990 Sixteenth Annual Northeast
Conference_Location :
State College, PA
DOI :
10.1109/NEBC.1990.66311
