Fluid-Structure Interaction Modeling of Peak Expiratory-Inspiratory Flow in a Stented Upper Airway Using Experimental Data

Beni, HM; Mortazavi, H; Scataglini, S; Truijen, S; Islam, MS; Paul, G

Fluid-Structure Interaction Modeling of Peak Expiratory-Inspiratory Flow in a Stented Upper Airway Using Experimental Data

Beni, HM Mortazavi, H Scataglini, S Truijen, S Islam, MS Paul, G

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Publisher:: Springer Nature
Publication Type:: Conference Proceeding
Citation:: Lecture Notes in Networks and Systems, 2023, 744 LNNS, pp. 106-114
Issue Date:: 2023-01-01

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Field	Value	Language
dc.contributor.author	Beni, HM
dc.contributor.author	Mortazavi, H
dc.contributor.author	Scataglini, S
dc.contributor.author	Truijen, S
dc.contributor.author	Islam, MS
dc.contributor.author	Paul, G
dc.date.accessioned	2024-01-10T02:36:59Z
dc.date.available	2024-01-10T02:36:59Z
dc.date.issued	2023-01-01
dc.identifier.citation	Lecture Notes in Networks and Systems, 2023, 744 LNNS, pp. 106-114
dc.identifier.isbn	9783031378478
dc.identifier.issn	2367-3370
dc.identifier.issn	2367-3389
dc.identifier.uri	http://hdl.handle.net/10453/174200
dc.description.abstract	A precise understanding of stent deformation in the upper respiratory tract is important in analyzing critical and dangerous effects of stent displacement on suffocation. Coughing and sneezing cause significant muscular respiratory reflexes in the body. Peak Expiratory Flow (PEF) from the mouth during coughing and sneezing was determined using spirometry to determine the boundary conditions for a mathematical model. Then, using the Fluid-Structure Interaction (FSI) method, a numerical solution for the airflow field in a 3D computed tomography (CT) scan-based upper airway model was calculated. In this model, fluid flow characteristics such as velocity and pressure were identified in various cross-sections of the upper airway. From that data, wall characteristics such as wall deformation were calculated. The maximum stent deformity, with peaks of 1.8 and 2.3 mm, occurs during coughing and sneezing, respectively, in the lower part of the stent’s connection to the tracheal wall. This deformation can be attributed to the stent’s properties with the upper respiratory system wall and the curved geometry of the trachea. Also, during Peak Inspiratory Flow (PIF), the majority of fine dust particles with a diameter of 1.25 μm escape to the lung, and the majority of dust particles with a diameter larger than 1.25 μm are deposited in the upper respiratory system.
dc.language	en
dc.publisher	Springer Nature
dc.relation.ispartof	Lecture Notes in Networks and Systems
dc.relation.ispartofseries	Lecture Notes in Networks and Systems
dc.relation.isbasedon	10.1007/978-3-031-37848-5_12
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Fluid-Structure Interaction Modeling of Peak Expiratory-Inspiratory Flow in a Stented Upper Airway Using Experimental Data
dc.type	Conference Proceeding
utslib.citation.volume	744 LNNS
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2024-01-10T02:36:57Z
pubs.publication-status	Published
pubs.volume	744 LNNS

Abstract:

A precise understanding of stent deformation in the upper respiratory tract is important in analyzing critical and dangerous effects of stent displacement on suffocation. Coughing and sneezing cause significant muscular respiratory reflexes in the body. Peak Expiratory Flow (PEF) from the mouth during coughing and sneezing was determined using spirometry to determine the boundary conditions for a mathematical model. Then, using the Fluid-Structure Interaction (FSI) method, a numerical solution for the airflow field in a 3D computed tomography (CT) scan-based upper airway model was calculated. In this model, fluid flow characteristics such as velocity and pressure were identified in various cross-sections of the upper airway. From that data, wall characteristics such as wall deformation were calculated. The maximum stent deformity, with peaks of 1.8 and 2.3 mm, occurs during coughing and sneezing, respectively, in the lower part of the stent’s connection to the tracheal wall. This deformation can be attributed to the stent’s properties with the upper respiratory system wall and the curved geometry of the trachea. Also, during Peak Inspiratory Flow (PIF), the majority of fine dust particles with a diameter of 1.25 μm escape to the lung, and the majority of dust particles with a diameter larger than 1.25 μm are deposited in the upper respiratory system.

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http://hdl.handle.net/10453/174200