NDLI: Comparison of simplified and actual model of trachea and main bronchi in airflow simulation

Content Provider	IEEE Xplore Digital Library
Author	Johari, N.H. Helmi, N.H.N. Osman, K.
Copyright Year	2010
Description	Author affiliation: Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81300 Skudai, Johor, Malaysia (Helmi, N.H.N.; Osman, K.) \|\| Faculty of Mechanical Engineering, Universiti Malaysia Pahang, 26600 Pekan, Malaysia (Johari, N.H.)
Abstract	Understanding of airflow in human airways is beneficial to medical field. Through the understanding, assessment on severity of airway disease and efficiency of medical inhalation drugs delivery can be assessed. For this purpose, an accurate and realistic human lung model is needed. With the variability in the outcomes based on both models notified, the reliability of the simplified models is questionable. It is the aim of this paper to determine the accuracy of the simplified models against actual human airways. Two models of trachea and main bronchi with different conditions; actual model and simplified were developed for comparison purpose. Different conditions of inspiratory breathing, 5 l/min, 9 l/min, 12 l/min and 15 l/min were imposed at the outlet with different ratio, 55% for right bronchus and another 45% for left. The results showed that the simplified model is reliable to provide accurate result on airflow in the airways. However, the level of accuracy diminished in regions with complex geometry i.e. highly irregular cross-sectional shape, rapid change in cross-sectional area, and around small radius curvature.
Starting Page	172
Ending Page	177
File Size	1114081
Page Count	6
File Format	PDF
ISBN	9781424489879
e-ISBN	9781424489862
DOI	10.1109/CSSR.2010.5773760
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-05
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Geometry Solid modeling Actual and simplified model Shape Atmospheric modeling Humans Electron tubes Main bronchus Respiratory system Trachea
Content Type	Text
Resource Type	Article

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