Effects of Air-Mucus Interface through a Human Trachea with Mild Constriction of Aerosols
A two-layer fluid model is proposed to study the transport of mucus in the trachea and air motion by considering mucus as a viscoelastic fluid. The effect of air flow due to inspiration and expiration is considered by prescribing shear stress at the mucus-air interface. The resistance to flow has been computed for different constriction length and for different constriction height. Shear stress distribution along the axial distance has been computed for different constriction height. It has been shown that, axial velocity profile, resistance flow, wall shear stress and concentration increases as the size of the constricted trachea increases.