Simulation of Pharyngeal Airway Interaction with Air Flow Using Low-Re Turbulence Model
Joint Authors
Inthavong, Kiao
Tu, Jiyuan
Rasani, M. R.
Source
Modelling and Simulation in Engineering
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-04-12
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
This paper aims to simulate the interaction between a simplified tongue replica with expiratory air flow considering the flow in the pharyngeal airway to be turbulent.
A three-dimensional model with a low-Re SST turbulence model is adopted.
An Arbitrary Eulerian-Lagrangian description for the fluid governing equation is coupled with the Lagrangian structural solver via a partitioned approach, allowing deformation of the fluid domain to be captured.
Both the three-dimensional flow features and collapsibility of the tongue are presented.
In addition, examining initial constriction height ranging from 0.8 mm to 11.0 mm and tongue replica modulus from 1.25 MPa to 2.25 MPa, the influence of both of these parameters on the flow rate and collapsibility of the tongue is also investigated and discussed.
Numerical simulations confirm expected predisposition of apneic patients with narrower airway opening to flow obstruction and suggest much severe tongue collapsibility if the pharyngeal flow regime is turbulent compared to laminar.
American Psychological Association (APA)
Rasani, M. R.& Inthavong, Kiao& Tu, Jiyuan. 2011. Simulation of Pharyngeal Airway Interaction with Air Flow Using Low-Re Turbulence Model. Modelling and Simulation in Engineering،Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-477409
Modern Language Association (MLA)
Rasani, M. R.…[et al.]. Simulation of Pharyngeal Airway Interaction with Air Flow Using Low-Re Turbulence Model. Modelling and Simulation in Engineering No. 2011 (2011), pp.1-9.
https://search.emarefa.net/detail/BIM-477409
American Medical Association (AMA)
Rasani, M. R.& Inthavong, Kiao& Tu, Jiyuan. Simulation of Pharyngeal Airway Interaction with Air Flow Using Low-Re Turbulence Model. Modelling and Simulation in Engineering. 2011. Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-477409
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-477409