Numerical study of a nasal cavity model having a constricted pharyngeal section representing obstructive sleep apnea

Zuber, Mohammad and Riazuddin, Vizy N. and Ahmada, Kamarul A. and Khader, Shah M A and Barsi, Adi A (2017) Numerical study of a nasal cavity model having a constricted pharyngeal section representing obstructive sleep apnea. Journal of Computational Methods in Sciences and Engineering, 17. pp. 219-226. ISSN 1472-7978

[img] PDF
2723.pdf - Published Version
Restricted to Registered users only

Download (2MB) | Request a copy

Abstract

This study presents, use 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 Obstructive Sleep Apnea (OSA) condition. 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 inspiratory and expiratory nasal flow.The study showed that, the pressure drop from the choanae to the OSA region was found to be larger than the pressure drop through the nasal passages. Stresses as high as 42.4 Pa were observed in this constricted OSA passageway, which is otherwise not a common occurrence in the normal subjects.

Item Type: Article
Uncontrolled Keywords: CFD, obstructive sleep apnea (OSA), nasal cavity, pressure, velocity
Subjects: Engineering > MIT Manipal > Aeronautical and Automobile
Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 21 Jun 2017 08:45
Last Modified: 21 Jun 2017 08:45
URI: http://eprints.manipal.edu/id/eprint/149119

Actions (login required)

View Item View Item