Numerical study of inspiratory and expiratory flow in a human nasal cavity

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

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The complicated architecture associated with the nasal anatomy makes it difficult for visualization and measurement of flow parameters inside the nasal cavity. Objective measurement devices like rhinomanometry or acoustic rhinometry fail to assist the understanding of the physiology at every location within the nasal cavity. Therefore, in order to visualize the flow features inside the nasal cavity and to compare the inspiratory phase and expiratory phase in terms of parameters like velocity, resistance, wall shear stress, vortex formation and turbulence intensity, a computational fluid dynamics study was carried out. This study presents, the usefulness of a technique based on functional imaging and computational fluid dynamics (CFD) modeling in generating useful data that can be used to determine and diagnose upper-airway conditions. Variations in flow patterns and flow features such as pressure drop, velocity and the left and right cavity were observed. Resistance to flow was greater during inspiratory phase when compared to the expiratory phase. Turbulence intensity was more predominant during expiratory phase, whereas vortex formation could be observed only during the inspiration mechanism.

Original languageEnglish
Pages (from-to)201-206
Number of pages6
JournalJournal of Medical and Biological Engineering
Volume31
Issue number3
DOIs
Publication statusPublished - 2011

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Nasal Cavity
Computational fluid dynamics
Vortex flow
Turbulence
Hydrodynamics
Physiology
Acoustic Rhinometry
Rhinomanometry
Flow patterns
Pressure drop
Shear stress
Visualization
Acoustics
Nose
Imaging techniques
Anatomy
Pressure
Equipment and Supplies

All Science Journal Classification (ASJC) codes

  • Medicine(all)
  • Biomedical Engineering

Cite this

Riazuddin, V. N., Zubair, M., Abdullah, M. Z., Ismail, R., Shuaib, I. L., Hamid, S. A., & Ahmad, K. A. (2011). Numerical study of inspiratory and expiratory flow in a human nasal cavity. Journal of Medical and Biological Engineering, 31(3), 201-206. https://doi.org/10.5405/jmbe.781
Riazuddin, Vizy Nazira ; Zubair, Mohammed ; Abdullah, Mohammed Zulkifly ; Ismail, Rushdan ; Shuaib, Ibrahim Lutfi ; Hamid, Suzina Abdul ; Ahmad, Kamarul Arifin. / Numerical study of inspiratory and expiratory flow in a human nasal cavity. In: Journal of Medical and Biological Engineering. 2011 ; Vol. 31, No. 3. pp. 201-206.
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Riazuddin, VN, Zubair, M, Abdullah, MZ, Ismail, R, Shuaib, IL, Hamid, SA & Ahmad, KA 2011, 'Numerical study of inspiratory and expiratory flow in a human nasal cavity', Journal of Medical and Biological Engineering, vol. 31, no. 3, pp. 201-206. https://doi.org/10.5405/jmbe.781

Numerical study of inspiratory and expiratory flow in a human nasal cavity. / Riazuddin, Vizy Nazira; Zubair, Mohammed; Abdullah, Mohammed Zulkifly; Ismail, Rushdan; Shuaib, Ibrahim Lutfi; Hamid, Suzina Abdul; Ahmad, Kamarul Arifin.

In: Journal of Medical and Biological Engineering, Vol. 31, No. 3, 2011, p. 201-206.

Research output: Contribution to journalArticle

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