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Effect of chronic obstructive pulmonary disease on airflow motion using computational fluid dynamics

Obstructed airway disease Chronic Obstructive Pulmonary Disease ranked as 6th leading cause of death in 1990 and it is projected to become the 4th leading cause of death worldwide by 2030. Chronic Obstructive Pulmonary Disease (COPD) is disease which will narrow the airway progressively. The narro...

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Main Author: Jagatis, Balaiyah
Format: Undergraduates Project Papers
Language:English
Published: 2013
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/10874/1/Effect%20of%20chronic%20obstructive%20pulmonary%20disease%20on%20airflow%20motion%20using%20computational%20fluid%20dynamics.pdf
http://umpir.ump.edu.my/id/eprint/10874/
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spelling my.ump.umpir.108742023-09-14T02:41:29Z http://umpir.ump.edu.my/id/eprint/10874/ Effect of chronic obstructive pulmonary disease on airflow motion using computational fluid dynamics Jagatis, Balaiyah TA Engineering (General). Civil engineering (General) Obstructed airway disease Chronic Obstructive Pulmonary Disease ranked as 6th leading cause of death in 1990 and it is projected to become the 4th leading cause of death worldwide by 2030. Chronic Obstructive Pulmonary Disease (COPD) is disease which will narrow the airway progressively. The narrowing is mainly caused by the wall in the bronchi become thick and inflame. The obstructed airway in the lung will alter the behaviour of the airflow. In order to study the effect of obstructive airways, four models of airway are generated based on 5th to 8th generation from 23 generation of Weibel Model. The simulation are carried out using Reynolds number range of 200 to 1400,corresponding to an average height man breathing from quiet to vigorous state. The fully three-dimensional incompressible laminar Navier—Stokes equations are solved using computational fluid dynamics (CFD) solver on unstructured tetrahedral meshes. In this study, a simplified healthy model is used as reference model and other three models are obstructed are generation 6th and 7th.The simulation results shows that the obstructed airways significantly alters the air flow pattern. The air flow rate ratio in the obstructed models are reduced due to the recirculation happens at the obstructed model which prevents air to enter the lower generation. It is found that, as the Reynolds number increase, the pressure drop also increased drastically in obstructed airway. This maybe the reason why COPD patient should breath gently. 2013-06 Undergraduates Project Papers NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/10874/1/Effect%20of%20chronic%20obstructive%20pulmonary%20disease%20on%20airflow%20motion%20using%20computational%20fluid%20dynamics.pdf Jagatis, Balaiyah (2013) Effect of chronic obstructive pulmonary disease on airflow motion using computational fluid dynamics. Faculty of Mechanical Engineering, Universiti Malaysia Pahang.
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Jagatis, Balaiyah
Effect of chronic obstructive pulmonary disease on airflow motion using computational fluid dynamics
description Obstructed airway disease Chronic Obstructive Pulmonary Disease ranked as 6th leading cause of death in 1990 and it is projected to become the 4th leading cause of death worldwide by 2030. Chronic Obstructive Pulmonary Disease (COPD) is disease which will narrow the airway progressively. The narrowing is mainly caused by the wall in the bronchi become thick and inflame. The obstructed airway in the lung will alter the behaviour of the airflow. In order to study the effect of obstructive airways, four models of airway are generated based on 5th to 8th generation from 23 generation of Weibel Model. The simulation are carried out using Reynolds number range of 200 to 1400,corresponding to an average height man breathing from quiet to vigorous state. The fully three-dimensional incompressible laminar Navier—Stokes equations are solved using computational fluid dynamics (CFD) solver on unstructured tetrahedral meshes. In this study, a simplified healthy model is used as reference model and other three models are obstructed are generation 6th and 7th.The simulation results shows that the obstructed airways significantly alters the air flow pattern. The air flow rate ratio in the obstructed models are reduced due to the recirculation happens at the obstructed model which prevents air to enter the lower generation. It is found that, as the Reynolds number increase, the pressure drop also increased drastically in obstructed airway. This maybe the reason why COPD patient should breath gently.
format Undergraduates Project Papers
author Jagatis, Balaiyah
author_facet Jagatis, Balaiyah
author_sort Jagatis, Balaiyah
title Effect of chronic obstructive pulmonary disease on airflow motion using computational fluid dynamics
title_short Effect of chronic obstructive pulmonary disease on airflow motion using computational fluid dynamics
title_full Effect of chronic obstructive pulmonary disease on airflow motion using computational fluid dynamics
title_fullStr Effect of chronic obstructive pulmonary disease on airflow motion using computational fluid dynamics
title_full_unstemmed Effect of chronic obstructive pulmonary disease on airflow motion using computational fluid dynamics
title_sort effect of chronic obstructive pulmonary disease on airflow motion using computational fluid dynamics
publishDate 2013
url http://umpir.ump.edu.my/id/eprint/10874/1/Effect%20of%20chronic%20obstructive%20pulmonary%20disease%20on%20airflow%20motion%20using%20computational%20fluid%20dynamics.pdf
http://umpir.ump.edu.my/id/eprint/10874/
_version_ 1778161046882615296
score 13.211869

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