PMID: 1144943Mar 1, 1975Paper

On equation of gas transport in the lung

Respiration Physiology
C P Yu

Abstract

Based upon Weibel's lung model, an equation which describes one-dimensional gas transport in the lung is derived. It is shown in this equation that the gas transport in the airways is due simultaneously to bulk motion and longitudinal diffusion. The longitudinal diffusion consists of the usual molecular diffusion and an apparent diffusion which arises from nonuniform distribution of the gas to the airways and a profile-interaction effect of the gas due to Taylor's mechanism in each individual airway. Expressions for the apparent diffusion coefficient are obtained. This apparent diffusion, which has been neglected in almost all previous studies of gas transport in the lung, is shown to be of dominant importance in the upper airways.

References

Sep 1, 1972·The Bulletin of Mathematical Biophysics·P W SchererN M Greene
Jul 1, 1973·Respiration Physiology·G R Stibitz
Sep 1, 1973·Respiration Physiology·H K Chang, L E Farhi
Aug 1, 1971·Respiration Physiology·G CummingS B Preston
Dec 1, 1970·Computers and Biomedical Research, an International Journal·M Paiva, M Demeester
Oct 1, 1969·Respiration Physiology·R C Schroter, M F Sudlow
Jan 1, 1966·Respiration Physiology·G CummingI Parker

Citations

Dec 1, 1981·Computers and Biomedical Research, an International Journal·A Ben JebriaJ F Boisvieux
Jan 1, 1984·International Journal of Bio-medical Computing·A Ben Jebria
Jun 1, 1977·Respiration Physiology·H D Van Liew, R W Mazzone
Aug 1, 1979·Respiration Physiology·S H Hobbs, E N Lightfoot
Mar 1, 1988·Respiration Physiology·B Reisfeld, J S Ultman
Jun 10, 2009·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Joseph L BullRonald B Hirschl
Oct 25, 2007·Inhalation Toxicology·Bahman Asgharian, Owen T Price

Related Concepts

Diffusion
Mathematics
Respiration

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