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Effects of Ostia Variation for Airflow Patterns within Nasal Cavity Models with Maxillary Sinus

E. Afiza 1, Y. Takakura 2, T. Atsumi 3, and M. Iida 3
1. Course of Science and Technology, Tokai University, Kanagawa, Japan
2. Course of Science and Technology, Tokai University, Kanagawa, Japan
3. School of Medicine, Tokai University, Kanagawa, Japan
Abstract—In this study, the airflow is numerically simulated within models of human nasal cavity on the effect of the variation of ostia for the maxillary sinus. Four models were generated according to variation on the number of the ostia and also its position. As the results of flow patterns within the main nasal cavity, almost no significant difference can be observed with or without the maxillary sinus. Regarding flows in ostia and the maxillary sinus, changes appear: In the standard model (with an anterior ostium only), the mass flow rate during inhalation is significantly higher in comparison to that during exhalation. The mass flow rate entering the sinus can be increased with the presence of multiple ostia as the flow enters and exits at different ostia. On the other hand in the model with a posterior ostium only, the mass flow rate is almost same at inhalation and exhalation.

Index Terms—numerical simulation, unsteady flow

Cite: E. Afiza, Y. Takakura, T. Atsumi, and M. Iida, "Effects of Ostia Variation for Airflow Patterns within Nasal Cavity Models with Maxillary Sinus," Journal of Medical and Bioengineering, Vol. 5, No. 2, pp. 98-102, April 2016. Doi: 10.18178/jomb.5.2.98-102
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