Results
The simulation values were obtained in the unsteady solution. The nasal
resistance measured (simulation) values of Model 1 were 0.69 (0.48) on
the right, 1.10 (0.41) on the left, and 0.42 (0.22) on both sides. The
actual measurement (simulation) values of Model 2 were 0.72 (0.21) on
the right, 0.32 (0.09) on the left, and 0.22 (0.06) on both sides (Fig.
2).
Additionally, the velocity vector of Models 1 and 2, as assessed using a
steady-state calculation, is shown in Figure 3. The speed near the
choana was suddenly reduced in Model 1. Conversely, the speed remained
unchanged in Model 2.
The streamlining of Models 1 and 2 using a steady-state calculation is
shown in Figures 4 and 5. In Model 1, we observed ventilation in the
right maxillary sinus and in both ethmoidal sinuses. Conversely, we did
not observe ventilation in the left maxillary sinuses or in both frontal
sinuses (Fig. 4). Additionally, in Model 2, we did not observe
ventilation in frontal and maxillary sinuses (Fig.5).