Detail publikace

Measurement of Cyclic Flows in Trachea Using PIV and Numerical simulation

BĚLKA, M. ELCNER, J. JEDELSKÝ, J. BOIRON, O. KNAPP, Y. BAILLY, L.

Originální název

Measurement of Cyclic Flows in Trachea Using PIV and Numerical simulation

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Inhalation of pharmaceutical aerosols is a convenient way to treat lung or even systemic diseases. For effective treatment it is very important to understand air flow characteristics within respiratory airways and determine deposition hot spots. In this paper the air flow in trachea was investigated by numerical simulations. To validate these results we carried out particle image velocimetry experiments and compared resulting velocity fields. Simplified geometry of respiratory airways from oral cavity to 4th generation of branching was employed. Air flow characteristics were analysed during sinusoidal breathing pattern for light activity conditions (period 4 s and tidal volume 1 l). The observed flow fields indicated that the flow in trachea is turbulent during the sinusoidal flow except phases of flow turnarounds. The flow was skewed to front side of the trachea during inspiration and had twin-peak profile during expiration because of the mixing from daughter branches. The methods were compared and good agreement was found. This validation of CFD simulation can result into its further usage in respiratory airflow studies.

Klíčová slova

particle image velocimetry, CFD, trachea, laryngeal jet

Autoři

BĚLKA, M.; ELCNER, J.; JEDELSKÝ, J.; BOIRON, O.; KNAPP, Y.; BAILLY, L.

Rok RIV

2015

Vydáno

6. 5. 2015

Nakladatel

EDP Sciences

Místo

France

ISSN

2100-014X

Periodikum

EPJ Web of Conferences

Ročník

92

Číslo

1

Stát

Francouzská republika

Strany od

1

Strany do

4

Strany počet

4

URL

https://www.epj-conferences.org/articles/epjconf/abs/2015/11/epjconf_efm2014_02006/epjconf_efm2014_02006.html

Plný text v Digitální knihovně

http://hdl.handle.net/11012/194767

BibTex

@inproceedings{BUT110746,
  author="Miloslav {Bělka} and Jakub {Elcner} and Jan {Jedelský} and Olivier {Boiron} and Yannick {Knapp} and Lucie {Bailly}",
  title="Measurement of Cyclic Flows in Trachea Using PIV and Numerical simulation",
  booktitle="EPJ Web of Conferences",
  year="2015",
  journal="EPJ Web of Conferences",
  volume="92",
  number="1",
  pages="1--4",
  publisher="EDP Sciences",
  address="France",
  doi="10.1051/epjconf/20159202006",
  issn="2100-014X",
  url="https://www.epj-conferences.org/articles/epjconf/abs/2015/11/epjconf_efm2014_02006/epjconf_efm2014_02006.html"
}