Publication detail

Aerosol deposition in oral/nasal cavity during breathing cycle

FORMAN, M. JÍCHA, M. KATOLICKÝ, J.

Original Title

Aerosol deposition in oral/nasal cavity during breathing cycle

English Title

Aerosol deposition in oral/nasal cavity during breathing cycle

Type

conference paper

Language

en

Original Abstract

A numerical model of the aerosol transport and deposition in nasal/oral cavity of a human is presented. The model was acquired from a CT scan of a living person and consist of mount-to-throat cavity and upper airways till the 6-8 generation of a bronchial tree. The deposition of the particles is given for two breathing regimes, the resting conditions with tidal volume of 0.5 litre and 15 l/min ventilation with period of 4 sec/cycle and full exercise conditions with 1.6 litre tidal volume and 120 l/min minute ventilation with cycle period of 1.25 sec/cycle. The aerosol concentration was assumed 50e-6g/m3 distributed in three size classes PM10, PM5 and PM1. The results shows deposition in different segments of the cavity as well as velocity profiles at different time steps of the breathing cycle.

English abstract

A numerical model of the aerosol transport and deposition in nasal/oral cavity of a human is presented. The model was acquired from a CT scan of a living person and consist of mount-to-throat cavity and upper airways till the 6-8 generation of a bronchial tree. The deposition of the particles is given for two breathing regimes, the resting conditions with tidal volume of 0.5 litre and 15 l/min ventilation with period of 4 sec/cycle and full exercise conditions with 1.6 litre tidal volume and 120 l/min minute ventilation with cycle period of 1.25 sec/cycle. The aerosol concentration was assumed 50e-6g/m3 distributed in three size classes PM10, PM5 and PM1. The results shows deposition in different segments of the cavity as well as velocity profiles at different time steps of the breathing cycle.

Keywords

human airway, aerosol deposition, CFD

RIV year

2007

Released

28.11.2007

Publisher

Technická Univerzita v Liberci

Location

Liberec

ISBN

978-80-7372-273-9

Book

Conference proceedings of Experimental Fluid Mechanics 2007

Edition number

1

Pages from

17

Pages to

22

Pages count

5

BibTex


@inproceedings{BUT28957,
  author="Matěj {Forman} and Miroslav {Jícha} and Jaroslav {Katolický}",
  title="Aerosol deposition in oral/nasal cavity during breathing cycle",
  annote="A numerical model of the aerosol transport and deposition in nasal/oral cavity of a human is presented. The model was acquired from a CT scan of a living person and consist of mount-to-throat cavity and upper airways till the 6-8 generation of a bronchial tree. The deposition of the particles is given for two breathing regimes, the resting conditions with tidal volume of 0.5 litre and 15 l/min ventilation with period of 4 sec/cycle and full exercise conditions with 1.6 litre tidal volume and 120 l/min minute ventilation with cycle period of 1.25 sec/cycle. The aerosol concentration was assumed 50e-6g/m3 distributed in three size classes PM10, PM5 and PM1. The results shows deposition in different segments of the cavity as well as velocity profiles at different time steps of the breathing cycle.",
  address="Technická Univerzita v Liberci",
  booktitle="Conference proceedings of Experimental Fluid Mechanics 2007",
  chapter="28957",
  institution="Technická Univerzita v Liberci",
  year="2007",
  month="november",
  pages="17--22",
  publisher="Technická Univerzita v Liberci",
  type="conference paper"
}