Numerical Simulation
Steady-state, laminar inspiratory airflow was simulated in the nasal cavities using the CFD software package Fluent 19.0 (ANSYS, Inc., Canonsburg, PA) to mimic physiologic inhalation conditions at 15L/min. The no-slip, stationary wall boundary condition was imposed on the nasal wall. A “pressure-inlet” condition at the nostrils with gauge pressure set to zero. A “mass-flow-rate” condition at the outlet to target 0.000301kg/s (15L/min).