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TECHNICAL BRIEFS

Hydrodynamic Model for Microscale Flows in a Channel With Two 90 deg Bends§

[+] Author and Article Information
Reni Raju, Subrata Roy

Computational Plasma Dynamics Laboratory, Department of Mechanical Engineering, Kettering University, Flint, MI 48504, USA e-mail: sroy@kettering.edu

J. Fluids Eng 126(3), 489-492 (Jul 12, 2004) (4 pages) doi:10.1115/1.1760547 History: Received April 10, 2003; Revised November 24, 2003; Online July 12, 2004
Copyright © 2004 by ASME
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References

Figures

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Numerical mass flow comparison for the five pressure ratios for slip and no-slip flow for the micro-column with 90 deg bends and corresponding mass flow for a straight microchannel
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V-velocity distribution comparison of slip and no-slip boundary condition along the centerline of the micro-column with 90 deg bends
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U velocity distribution comparison of slip and no-slip boundary condition along the centerline of the micro-column with 90 deg bends
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Pressure distribution comparison of slip and no-slip boundary condition along the centerline of the micro-column with 90 deg bend
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Pressure distribution comparison of numerical results for the micro-column with 90 deg bend and a straight microchannel 69 with slip flow along the centerline
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Velocity vectors in the micro-column for Pin/P6out=2.701. The peak v-velocities are shown at the centerline distance of 1200 μm from the inlet in the vertical section.
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Richardson extrapolation plotted on a log-log scale documents the mesh convergence in L1 (one-) and L (max-) norm
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Two dimensional geometry schematic used for microflow analysis

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