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TECHNICAL PAPERS

Aerosol Transport and Deposition in Sequentially Bifurcating Airways

[+] Author and Article Information
J. K. Comer, C. Kleinstreuer, S. Hyun

Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695-7910

C. S. Kim

Human Studies Division, National Health and Environmental Effects Research Laboratory, U.S. EPA, Research Triangle Park, NC 27711

J Biomech Eng 122(2), 152-158 (Nov 03, 1999) (7 pages) doi:10.1115/1.429636 History: Received August 26, 1998; Revised November 03, 1999
Copyright © 2000 by ASME
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References

Figures

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Schematic of symmetric in-plane double bifurcation geometry: D1=0.6,D2=0.5,D3=0.35,L1=2.4,L2=0.836,L3=3.367,L4=0.6,Rb1=2.7D2,Rb2=4.7D3,rc1=0.1D2,rc2=0.1D3 (all dimensions in centimeters)
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Representative computational mesh and particle inlet distribution: (a) in-plane double bifurcation; (b) 90 deg out-of-plane double bifurcation; and (c) parabolic particle inlet distribution
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Comparison between computed and measured η(Stk) data for the first bifurcation of a symmetric double bifurcation (for correlation, cf. 12)
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Comparison between computed and measured η(Stk) data for the second bifurcation of a symmetric in-plane double bifurcation (for correlation, cf. 12)
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Comparison between computed and measured η(Stk) data for the second bifurcation of a symmetric out-of-plane double bifurcation (for correlation, cf. 12)
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Deposition distributions for the in-plane and out-of-plane double bifurcations: (a) ReD1=500, and (b) ReD1=2000
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Local particle deposition patterns and velocity contour plots in a symmetric in-plane double bifurcation
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Local particle deposition patterns in an out-of-plane double bifurcation
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Individual particles’ inlet position (cf. Fig. 1) and fate in a symmetric, in-plane double bifurcation
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Individual particles’ inlet position (cf. Fig. 1) and fate in a symmetric, out-of-plane double bifurcation

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