gms | German Medical Science

83. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e. V.

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e. V.

16.05. - 20.05.2012, Mainz

Airflow and temperature distribution inside maxillary sinus: a computational fluid dynamics simulation

Meeting Abstract

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  • corresponding author Hongrui Zang - Beijing Tongren Hospital, Capital Medical University, Beijing, P.R. China
  • Tong Wang - Beijing Tongren Hospital, Capital Medical University, Beijing, P.R. China
  • Lifeng Li - Beijing Tongren Hospital, Capital Medical University, Beijing, P.R. China
  • Demin Han - Beijing Tongren Hospital, Capital Medical University, Beijing, P.R. China

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. 83. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. Mainz, 16.-20.05.2012. Düsseldorf: German Medical Science GMS Publishing House; 2012. Doc12hnod687

doi: 10.3205/12hnod687, urn:nbn:de:0183-12hnod6870

Veröffentlicht: 4. April 2012

© 2012 Zang et al.
Dieser Artikel ist ein Open Access-Artikel und steht unter den Creative Commons Lizenzbedingungen (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.de). Er darf vervielf&aauml;ltigt, verbreitet und &oauml;ffentlich zug&aauml;nglich gemacht werden, vorausgesetzt dass Autor und Quelle genannt werden.


Gliederung

Text

The research paper consists of three parts. Firstly, four kinds of meshes with increasing densities were solved in Fluent for accuracy analysis. Secondly, normal flow and temperature field in maxillary sinuses were simulated. Thirdly, comparisons of airflow and temperature distribution in maxillary sinuses between normal and models with different ostium were implemented.

Objectives: The purpose of the paper is to investigate, firstly, the flow and temperature distribution inside normal maxillary sinus in inspiration, and secondly, flow and temperature alteration with the increase of maximum ostium diameter.

Methods: Three dimensional models with nasal cavities and bilateral maxillary sinuses were constructed for computational fluid dynamics analysis. Virtual surgeries were implemented to maxillary ostium, the maximum diameter of which are 8mm, 10mm, 12mm,15mm respectively. Finite volume method was used for numerical simulation. The indices of velocity, pressure, vector and temperature were processed and compared between models.

Results: The airflow velocity in maxillary sinuses (average velocity 0.062m/s) is much lower than that in middle meatus (average velocity 3.26m/s). With the increase of ostium diameter, airflow characteristics distributed in maxillary sinuses changed little. The temperature in maxillary sinus kept almost constant of 34 centigrade degree in normal and changed little with the increase of ostium diameter.

Conclusion: The airflow velocity and flux in maxillary sinuses were much lower than those in nasal cavity, and the temperature in maxillary sinuses is much higher than temperature in middle meatus. With the increase of maximum ostium, the above indices changed little.