Effect of Chronic Obstructive Pulmonary Disease on Airflow Motion Using Computational Fluid Dynamics Analysis

Chronic Obstructive Pulmonary Disease (COPD) ranked as the fifth leading cause of death in 2002 and it is had been predicted to become fourth leading cause of death worldwide by 2030. COPD is a disease that will narrow the airway progressively and it alters the behaviour of normal breathing flow. Th...

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Main Authors:	Nasrul Hadi, Johari, Jegatis, Balaiyah, Zulkifli, Ahmad
Format:	Conference or Workshop Item
Language:	English
Published:	2014
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/7384/ http://umpir.ump.edu.my/id/eprint/7384/ http://umpir.ump.edu.my/id/eprint/7384/1/Effect_of_Chronic_Obstructive_Pulmonary_Disease_on_Airflow_Motion_Using_Computational_Fluid_Dynamics_Analysis.pdf

id	ump-7384
recordtype	eprints
spelling	ump-73842018-04-25T02:34:06Z http://umpir.ump.edu.my/id/eprint/7384/ Effect of Chronic Obstructive Pulmonary Disease on Airflow Motion Using Computational Fluid Dynamics Analysis Nasrul Hadi, Johari Jegatis, Balaiyah Zulkifli, Ahmad TJ Mechanical engineering and machinery Chronic Obstructive Pulmonary Disease (COPD) ranked as the fifth leading cause of death in 2002 and it is had been predicted to become fourth leading cause of death worldwide by 2030. COPD is a disease that will narrow the airway progressively and it alters the behaviour of normal breathing flow. This study aims to investigate the changes of flow pattern and pressure distribution with respect the presence of COPD on the airway's lumen. Four airway models were generated based on the fifth to eighth generations of Weibel's lung model. The simulations were carried out using Reynolds number ranging of 200 to 1400, corresponding to an average height man breathing from rest to vigorous state. The three-dimensional (3D) incompressible laminar Navier-Stokes equations are solved using computational fluid dynamics (CFD) solver on unstructured tetrahedral meshes. This method overcomes the problem of the absence of actual images for different COPD locations. The simulation results show that the obstructed airways significantly alter the air flow rate ratio 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 increases, the pressure drop also increased drastically in obstructed airway. 2014 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7384/1/Effect_of_Chronic_Obstructive_Pulmonary_Disease_on_Airflow_Motion_Using_Computational_Fluid_Dynamics_Analysis.pdf Nasrul Hadi, Johari and Jegatis, Balaiyah and Zulkifli, Ahmad (2014) Effect of Chronic Obstructive Pulmonary Disease on Airflow Motion Using Computational Fluid Dynamics Analysis. In: International Conference on Computer, Communications, and Control Technology, 2-4 September 2014 , Langkawi, Kedah. pp. 249-254.. http://dx.doi.org/10.1109/I4CT.2014.6914184
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 Jegatis, Balaiyah Zulkifli, Ahmad Effect of Chronic Obstructive Pulmonary Disease on Airflow Motion Using Computational Fluid Dynamics Analysis
description	Chronic Obstructive Pulmonary Disease (COPD) ranked as the fifth leading cause of death in 2002 and it is had been predicted to become fourth leading cause of death worldwide by 2030. COPD is a disease that will narrow the airway progressively and it alters the behaviour of normal breathing flow. This study aims to investigate the changes of flow pattern and pressure distribution with respect the presence of COPD on the airway's lumen. Four airway models were generated based on the fifth to eighth generations of Weibel's lung model. The simulations were carried out using Reynolds number ranging of 200 to 1400, corresponding to an average height man breathing from rest to vigorous state. The three-dimensional (3D) incompressible laminar Navier-Stokes equations are solved using computational fluid dynamics (CFD) solver on unstructured tetrahedral meshes. This method overcomes the problem of the absence of actual images for different COPD locations. The simulation results show that the obstructed airways significantly alter the air flow rate ratio 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 increases, the pressure drop also increased drastically in obstructed airway.
format	Conference or Workshop Item
author	Nasrul Hadi, Johari Jegatis, Balaiyah Zulkifli, Ahmad
author_facet	Nasrul Hadi, Johari Jegatis, Balaiyah Zulkifli, Ahmad
author_sort	Nasrul Hadi, Johari
title	Effect of Chronic Obstructive Pulmonary Disease on Airflow Motion Using Computational Fluid Dynamics Analysis
title_short	Effect of Chronic Obstructive Pulmonary Disease on Airflow Motion Using Computational Fluid Dynamics Analysis
title_full	Effect of Chronic Obstructive Pulmonary Disease on Airflow Motion Using Computational Fluid Dynamics Analysis
title_fullStr	Effect of Chronic Obstructive Pulmonary Disease on Airflow Motion Using Computational Fluid Dynamics Analysis
title_full_unstemmed	Effect of Chronic Obstructive Pulmonary Disease on Airflow Motion Using Computational Fluid Dynamics Analysis
title_sort	effect of chronic obstructive pulmonary disease on airflow motion using computational fluid dynamics analysis
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/7384/ http://umpir.ump.edu.my/id/eprint/7384/ http://umpir.ump.edu.my/id/eprint/7384/1/Effect_of_Chronic_Obstructive_Pulmonary_Disease_on_Airflow_Motion_Using_Computational_Fluid_Dynamics_Analysis.pdf
first_indexed	2023-09-18T22:04:00Z
last_indexed	2023-09-18T22:04:00Z
_version_	1777414586370097152

Effect of Chronic Obstructive Pulmonary Disease on Airflow Motion Using Computational Fluid Dynamics Analysis

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