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TECHNICAL PAPERS

Fluid Flow Through Microscale Fractal-Like Branching Channel Networks

[+] Author and Article Information
Ali Y. Alharbi

Department of Mechanical Power and Refrigeration, PAAET College of Technological Studies, P.O. Box 42325, Shuwaikh 70654, Kuwaite-mail: aalharbi@paaetms.paaet.edu.kw

Deborah V. Pence, Rebecca N. Cullion

Department of Mechanical Engineering, Oregon State University, 204 Rogers Hall, Corvallis, OR 97331-6001

J. Fluids Eng 125(6), 1051-1057 (Jan 12, 2004) (7 pages) doi:10.1115/1.1625684 History: Received January 22, 2003; Revised June 06, 2003; Online January 12, 2004
Copyright © 2003 by ASME
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References

Figures

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Fractal-like branching channel network (shaded path includes branches k=0,k=1,k=2b,k=3c,k=4f)
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Constant property pressure distribution through fractal-like and straight channel networks
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Local coordinate system for k=3c branch. Note that z is always out of the page and that the channel k=3d is tapered.
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Mid-depth, z=0.5, velocity magnitudes at the junction between branching level 0 and level 1
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Axial velocity profiles at x=0 and z=0.5 for all branches along shaded path in Fig. 1
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Axial velocity profiles at x=0 and y=0.5 for all branches along shaded path in Fig. 1
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Axial velocity profiles at x=1 and z=0.5 for all branches along shaded path in Fig. 1
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Axial velocity profiles at x=1 and y=0.5 for all branches along shaded path in Fig. 1
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Nonaxial velocity vectors at x=1 for branch k=0
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Nonaxial velocity vectors at x=1 for branch k=1
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Particle trace of massless particle introduced near (x,y,z)=(0,0.9,0.65) of k=3d branch
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Three-dimensional CFD pressure distributions for fractal-like and straight channel networks with constant and variable fluid properties
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Experimental pressure drop from two prototypes compared with pressure drop from three-dimensional CFD model with an inlet plenum. Fully developed assessments are based on theory with no inlet plenum.

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