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Open Access Green as soon as Postprint is submitted to ZB.
A method for the approximation of the relative humidity in the upper human airways.
Bull. Math. Biol. 47, 565-589 (1985)
In order to determine the growth of inhaled aerosol particles in the human respiratory tract the relative humidity in a lung model has been calculated using a numerical method. The computations take into account different types of airflows, enhanced transport mechanisms and an optimized wall temperature profile in the upper airways. These parameters are varied to fit experimental temperature data. Under certain conditions the corresponding relative humidity shows a maximum near the first bifurcation, which exceeds the final humidity in the alveoli. This high humidity forces dry NaC1 particles with diameters less than 0.5 μm to grow to their maximum size in the first bronchi. Thereafter the droplets loose water and reach their final size in the terminal bronchioles.
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Publication type
Article: Journal article
Document type
Scientific Article
ISSN (print) / ISBN
0092-8240
e-ISSN
1522-9602
Journal
Bulletin of Mathematical Biology
Quellenangaben
Volume: 47,
Issue: 4,
Pages: 565-589
Publisher
Springer
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Radiation Protection (ISS)