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Experiments in Fluids
Erschienen in: Experiments in Fluids 5/2004

01.11.2004 | Original Paper

The flow inside an idealised form of the human extra-thoracic airway

verfasst von: A. Johnstone, M. Uddin, A. Pollard, A. Heenan, W. H. Finlay

Erschienen in: Experiments in Fluids | Ausgabe 5/2004

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Abstract

The mean and RMS axial velocity field in the central sagittal plane of an idealized representation of the human extrathoracic airway (ETA) during steady inspiration was studied experimentally using single and X-hot-wire anemometry (HWA). Complementary flow-visualization results illustrate the complex nature of this flow, which includes several regions of separated, secondary, and recirculating flow. Hot-wire experiments attest to this complexity, with several regions of high localized turbulence intensity measured distal to the oropharynx. Physiologically accurate flow rates of 10, 15, 30, 45, 60, 90 and 120 l/min are considered. These flow rates encompass a wide range of respiratory patterns, from normal breathing to the rapid inhalation typically encountered during the use of pharmaceutical aerosol inhalation devices.
Vorheriger Artikel Use of a gamma ray attenuation technique to study colloid deposition in porous media
Nächster Artikel Parameterization of the in-water motions of falling cylinders using high-speed video

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Fußnoten
1
The reader is referred to Figs. 1 and 2a, b to place the following in context.
 
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Metadaten
Titel
The flow inside an idealised form of the human extra-thoracic airway
verfasst von
A. Johnstone
M. Uddin
A. Pollard
A. Heenan
W. H. Finlay
Publikationsdatum
01.11.2004
Verlag
Springer-Verlag
Erschienen in
Experiments in Fluids / Ausgabe 5/2004
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-004-0857-4

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