Publication detail

Study of airflow during respiratory cycle in semi-realistic model of human tracheobronchial tree

ELCNER, J. ZAREMBA, M. MALÝ, M. JEDELSKÝ, J. LÍZAL, F. JÍCHA, M.

Original Title

Study of airflow during respiratory cycle in semi-realistic model of human tracheobronchial tree

English Title

Study of airflow during respiratory cycle in semi-realistic model of human tracheobronchial tree

Type

conference paper

Language

en

Original Abstract

This article deals with study of airflow under breathing process, which is characteristic by unsteady behavior. Simulations provided by computational fluid dynamics (CFD) was compared with experiments performed on similar geometry of human upper airways. This geometry was represented by mouth cavity of realistic shape connected to an idealized tracheobronchial tree up to fourth generation of branching. Commercial CFD software Star-CCM+ was used to calculate airflow inside investigated geometry and method of Reynolds averaging of Navier-Stokes equations was used for subscribing the turbulent behavior through model geometry. Conditions corresponding to resting state were considered. Comparisons with experiments were provided on several points through trachea and bronchial tree and results with respect to inspiratory and respiratory part of breathing cycle was discussed.

English abstract

This article deals with study of airflow under breathing process, which is characteristic by unsteady behavior. Simulations provided by computational fluid dynamics (CFD) was compared with experiments performed on similar geometry of human upper airways. This geometry was represented by mouth cavity of realistic shape connected to an idealized tracheobronchial tree up to fourth generation of branching. Commercial CFD software Star-CCM+ was used to calculate airflow inside investigated geometry and method of Reynolds averaging of Navier-Stokes equations was used for subscribing the turbulent behavior through model geometry. Conditions corresponding to resting state were considered. Comparisons with experiments were provided on several points through trachea and bronchial tree and results with respect to inspiratory and respiratory part of breathing cycle was discussed.

Keywords

Airflow, CFD, Lungs, Respiratory cycle

Released

27.04.2016

Publisher

American Institute of Physics Inc.

ISBN

978-0-7354-1402-0

Book

APPLICATION OF EXPERIMENTAL AND NUMERICAL METHODS IN FLUID MECHANICS AND ENERGY 2016: XX ANNIVERSARY OF INTERNATIONAL SCIENTIFIC CONFERENCE

Pages from

1

Pages to

6

Pages count

6

URL

BibTex


@inproceedings{BUT129687,
  author="Jakub {Elcner} and Matouš {Zaremba} and Milan {Malý} and Jan {Jedelský} and František {Lízal} and Miroslav {Jícha}",
  title="Study of airflow during respiratory cycle in semi-realistic model of human tracheobronchial tree",
  annote="This article deals with study of airflow under breathing process, which is characteristic by unsteady behavior. Simulations provided by computational fluid dynamics (CFD) was compared with experiments performed on similar geometry of human upper airways. This geometry was represented by mouth cavity of realistic shape connected to an idealized tracheobronchial tree up to fourth generation of branching. Commercial CFD software Star-CCM+ was used to calculate airflow inside investigated geometry and method of Reynolds averaging of Navier-Stokes equations was used for subscribing the turbulent behavior through model geometry. Conditions corresponding to resting state were considered. Comparisons with experiments were provided on several points through trachea and bronchial tree and results with respect to inspiratory and respiratory part of breathing cycle was discussed.",
  address="American Institute of Physics Inc.",
  booktitle="APPLICATION OF EXPERIMENTAL AND NUMERICAL METHODS IN FLUID MECHANICS AND ENERGY 2016: XX ANNIVERSARY OF INTERNATIONAL SCIENTIFIC CONFERENCE",
  chapter="129687",
  doi="10.1063/1.4953703",
  howpublished="online",
  institution="American Institute of Physics Inc.",
  year="2016",
  month="april",
  pages="1--6",
  publisher="American Institute of Physics Inc.",
  type="conference paper"
}