NDLI: Computer simulation of aerosol transport and deposition in multi-generation airway models

Content Provider	IEEE Xplore Digital Library
Author	Kleinstreuer, C. Comer, J.K. Zhang, Z. Kim, C.S.
Copyright Year	1999
Description	Author affiliation: Dept. of Mech. & Aerosp. Eng., North Carolina State Univ., Raleigh, NC, USA (Kleinstreuer, C.)
Abstract	Laminar dilute suspension flows of micron-particles in rigid tubular double and triple bifurcations, representing segments of human respiratory airways, have been simulated with a finite-volume code for the air flow and an ODE-solver for the aerosol trajectories. Of interest are the local particle deposition characteristics with respect to inlet conditions, particle size, and branching geometry. Particle diameters of 3, 5, and 7 /spl mu/m were considered while the inlet Reynolds and Stokes numbers varied from 500 to 2000 and 0.037 to 0.23, respectively. Results were successfully compared with measured particle deposition efficiencies for single and double bifurcations. Particle deposition occurs mainly in the carinal regions, the amount declining with each downstream bifurcation, and the patterns becoming asymmetric due to the highly vortical air flow fields after the first bifurcation. The results of the study will provide necessary information for algebraic dosimetry models of the lung as well as quantitative health risk assessment of inhaled air pollutants.
File Size	135707
File Format	PDF
ISBN	0780356748
ISSN	1094687X
DOI	10.1109/IEMBS.1999.802420
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computer simulation Aerosols Bifurcation Humans Computational modeling Geometry Particle measurements Pollution measurement Dosimetry Lungs
Content Type	Text
Resource Type	Article

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