The Effect of Tracheal Stenosis on Airflow in the Trachea and Main Bronchi:A Numerical Modelling Analysis

The location and size of tracheal stenosis are among the major factors that contribute significantly to the breathing difficulties. Hence, this study aims to establish correlation between the location and size of the stenosis to the possibility of breathing difficulties. This work used ideal trachea...

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Main Authors:	Nasrul Hadi, Johari, Kahar, Osman, Mohammed Rafiq, A. Kader
Format:	Article
Language:	English
Published:	Publishing Technology 2013
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/5517/ http://umpir.ump.edu.my/id/eprint/5517/ http://umpir.ump.edu.my/id/eprint/5517/ http://umpir.ump.edu.my/id/eprint/5517/1/fkm-2014-18.pdf

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recordtype	eprints
spelling	ump-55172018-04-10T02:01:41Z http://umpir.ump.edu.my/id/eprint/5517/ The Effect of Tracheal Stenosis on Airflow in the Trachea and Main Bronchi:A Numerical Modelling Analysis Nasrul Hadi, Johari Kahar, Osman Mohammed Rafiq, A. Kader TJ Mechanical engineering and machinery The location and size of tracheal stenosis are among the major factors that contribute significantly to the breathing difficulties. Hence, this study aims to establish correlation between the location and size of the stenosis to the possibility of breathing difficulties. This work used ideal trachea model based on realistic trachea model derived from Computed Tomography (CT) scan images. The stenosis was patched to the healthy trachea models at regular locations and sizes as proposed by medical practitioners. The changes in the flow behavior due to the different sizes and locations of the stenosis were then examined to determine the pattern of possible breathing difficulties. The present simulation confirms that the overall flow behavior could be significantly affected if the size of stenosis is more than 60% for location far from the bifurcation region, and at size of 50% for location close to the bifurcation region. The outcomes of this study may help the medical practitioners and researchers to understand how dramatic increase in pressure drops occurs inside the trachea and main bronchi with the presence of stenosis at different location and size. Publishing Technology 2013 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/5517/1/fkm-2014-18.pdf Nasrul Hadi, Johari and Kahar, Osman and Mohammed Rafiq, A. Kader (2013) The Effect of Tracheal Stenosis on Airflow in the Trachea and Main Bronchi:A Numerical Modelling Analysis. Advanced Science Letters, 19 (10). pp. 3041-3046. ISSN 1936-6612 http://dx.doi.org/10.1166/asl.2013.5100 DOI:10.1166/asl.2013.5100
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Nasrul Hadi, Johari Kahar, Osman Mohammed Rafiq, A. Kader The Effect of Tracheal Stenosis on Airflow in the Trachea and Main Bronchi:A Numerical Modelling Analysis
description	The location and size of tracheal stenosis are among the major factors that contribute significantly to the breathing difficulties. Hence, this study aims to establish correlation between the location and size of the stenosis to the possibility of breathing difficulties. This work used ideal trachea model based on realistic trachea model derived from Computed Tomography (CT) scan images. The stenosis was patched to the healthy trachea models at regular locations and sizes as proposed by medical practitioners. The changes in the flow behavior due to the different sizes and locations of the stenosis were then examined to determine the pattern of possible breathing difficulties. The present simulation confirms that the overall flow behavior could be significantly affected if the size of stenosis is more than 60% for location far from the bifurcation region, and at size of 50% for location close to the bifurcation region. The outcomes of this study may help the medical practitioners and researchers to understand how dramatic increase in pressure drops occurs inside the trachea and main bronchi with the presence of stenosis at different location and size.
format	Article
author	Nasrul Hadi, Johari Kahar, Osman Mohammed Rafiq, A. Kader
author_facet	Nasrul Hadi, Johari Kahar, Osman Mohammed Rafiq, A. Kader
author_sort	Nasrul Hadi, Johari
title	The Effect of Tracheal Stenosis on Airflow in the Trachea and Main Bronchi:A Numerical Modelling Analysis
title_short	The Effect of Tracheal Stenosis on Airflow in the Trachea and Main Bronchi:A Numerical Modelling Analysis
title_full	The Effect of Tracheal Stenosis on Airflow in the Trachea and Main Bronchi:A Numerical Modelling Analysis
title_fullStr	The Effect of Tracheal Stenosis on Airflow in the Trachea and Main Bronchi:A Numerical Modelling Analysis
title_full_unstemmed	The Effect of Tracheal Stenosis on Airflow in the Trachea and Main Bronchi:A Numerical Modelling Analysis
title_sort	effect of tracheal stenosis on airflow in the trachea and main bronchi:a numerical modelling analysis
publisher	Publishing Technology
publishDate	2013
url	http://umpir.ump.edu.my/id/eprint/5517/ http://umpir.ump.edu.my/id/eprint/5517/ http://umpir.ump.edu.my/id/eprint/5517/ http://umpir.ump.edu.my/id/eprint/5517/1/fkm-2014-18.pdf
first_indexed	2023-09-18T22:00:50Z
last_indexed	2023-09-18T22:00:50Z
_version_	1777414387146948608

The Effect of Tracheal Stenosis on Airflow in the Trachea and Main Bronchi:A Numerical Modelling Analysis

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