Simulation of stenosis effect on airflow pattern in trachea and main bronchi
Tracheal stenosis is a condition where the diameter size of trachea wall decreases and leads to the obstruction of the breathing airflow. Investigation on the effect of the stenosis to the airflow pattern in the trachea and main bronchi is the objective for this study. CT-scan images of two airways...
| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Published: |
2010
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/1633/ http://eprints.uthm.edu.my/1633/1/Zulia_FKMP_(CSSR2010).pdf |
| Summary: | Tracheal stenosis is a condition where the
diameter size of trachea wall decreases and leads to the
obstruction of the breathing airflow. Investigation on the
effect of the stenosis to the airflow pattern in the trachea
and main bronchi is the objective for this study. CT-scan
images of two airways models were modeled, one with the
stenosis and one without. Numerical solution was used to
study the airway pattern inside the airway. Different
boundary conditions of inspirations flow rate were applied;
15 l/min, 60 l/min and 100l/min where the ratio for the right
main bronchus is 55% and for the left main bronchus is
45%. The results showed that the pressure drop inside the
stenosis model is higher compared to that of healthy model.
The pressure drop was also shown to interrupt the inlet
condition into the main bronchi. |
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