Airflow inside the nasal cavity: Visualization using computational fluid dynamics

Mohammed Zubair, Vizy Nazira Riazuddin, Mohammed Zulkifly Abdullah, Rushdan Ismail, Ibrahim Lutfi Shuaib, Suzina Abdul Hamid, Kamarul Arifin Ahmad

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Background: It is of clinical importance to examine the nasal cavity pre-operatively on surgical treatments. However, there is no simple and easy way to measure airflow in the nasal cavity. Objectives: Visualize the flow features inside the nasal cavity using computational fluid dynamics (CFD) method, and study the effect of different breathing rates on nasal function. Method: A three-dimensional nasal cavity model was reconstructed based on computed tomographic images of a healthy Malaysian adult nose. Navier-Stokes and continuity equations for steady airflow were solved numerically to examine the inspiratory nasal flow. Results: The flow resistance obtained varied from 0.026 to 0.124 Pa.s/mL at flow-rate from 7.5 L/min to 40 L/min. Flow rates by breathing had significant influence on airflow velocity and wall shear-stress in the vestibule and nasal valve region. Conclusion: Airflow simulations based on CFD is most useful for better understanding of flow phenomenon inside the nasal cavity.

Original languageEnglish
Pages (from-to)657-661
Number of pages5
JournalAsian Biomedicine
Volume4
Issue number4
Publication statusPublished - 08-2010

All Science Journal Classification (ASJC) codes

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)

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