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

Civil Engineering

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