Expiratory flow in a rigid three-generation airway with one collapsible segment

X. L. Yang; Yang Liu; J. M. Yang

doi:10.1002/cnm.1198

Expiratory flow in a rigid three-generation airway with one collapsible segment

X. L. Yang
, Yang Liu
, J. M. Yang

Research output: Journal article publication › Journal article › Academic research › peer-review

7 Citations (Scopus)

Abstract

The expiratory flow in a rigid three-generation airway with one collapsible segment was numerically studied using fluid-structure interaction technique. A self-developed finite element method code was used to calculate the nonlinear deformation of the thin-walled structure, whereas a commercial computational fluid dynamics solver was used to resolve the fluid flow. The elastic tube in the second-generation branch collapsed into wave number N =3 mode. The deformation of the collapsible tube increased the resistance to the fluid flow and formed a jet that altered the downstream flow pattern significantly.

Original language	English
Pages (from-to)	553-563
Number of pages	11
Journal	Communications in Numerical Methods in Engineering
Volume	25
Issue number	5
DOIs	https://doi.org/10.1002/cnm.1198
Publication status	Published - 20 Aug 2009

Keywords

CFD
Collapsible tubes
Expiratory flow
Fluid-structure interaction

ASJC Scopus subject areas

Software
Modelling and Simulation
General Engineering
Computational Theory and Mathematics
Applied Mathematics

More information

10.1002/cnm.1198

Cite this

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abstract = "The expiratory flow in a rigid three-generation airway with one collapsible segment was numerically studied using fluid-structure interaction technique. A self-developed finite element method code was used to calculate the nonlinear deformation of the thin-walled structure, whereas a commercial computational fluid dynamics solver was used to resolve the fluid flow. The elastic tube in the second-generation branch collapsed into wave number N =3 mode. The deformation of the collapsible tube increased the resistance to the fluid flow and formed a jet that altered the downstream flow pattern significantly.",

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AU - Liu, Yang

AU - Yang, J. M.

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N2 - The expiratory flow in a rigid three-generation airway with one collapsible segment was numerically studied using fluid-structure interaction technique. A self-developed finite element method code was used to calculate the nonlinear deformation of the thin-walled structure, whereas a commercial computational fluid dynamics solver was used to resolve the fluid flow. The elastic tube in the second-generation branch collapsed into wave number N =3 mode. The deformation of the collapsible tube increased the resistance to the fluid flow and formed a jet that altered the downstream flow pattern significantly.

AB - The expiratory flow in a rigid three-generation airway with one collapsible segment was numerically studied using fluid-structure interaction technique. A self-developed finite element method code was used to calculate the nonlinear deformation of the thin-walled structure, whereas a commercial computational fluid dynamics solver was used to resolve the fluid flow. The elastic tube in the second-generation branch collapsed into wave number N =3 mode. The deformation of the collapsible tube increased the resistance to the fluid flow and formed a jet that altered the downstream flow pattern significantly.

KW - CFD

KW - Collapsible tubes

KW - Expiratory flow

KW - Fluid-structure interaction

UR - https://www.scopus.com/pages/publications/68749086099

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DO - 10.1002/cnm.1198

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ER -

Expiratory flow in a rigid three-generation airway with one collapsible segment

Abstract

Keywords

ASJC Scopus subject areas

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