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Pressure Drop of Fully-Developed, Laminar Flow in Rough Microtubes

[+] Author Affiliations
M. Bahrami, M. M. Yovanovich, J. R. Culham

University of Waterloo, Waterloo, ON, Canada

Paper No. ICMM2005-75108, pp. 259-268; 10 pages
doi:10.1115/ICMM2005-75108
From:
  • ASME 3rd International Conference on Microchannels and Minichannels
  • ASME 3rd International Conference on Microchannels and Minichannels, Parts A and B
  • Toronto, Ontario, Canada, June 13–15, 2005
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4185-5 | eISBN: 0-7918-3758-0
  • Copyright © 2005 by ASME

abstract

The characteristics of fully-developed, laminar, pressure-driven, incompressible flow in rough circular microchannels are studied. A novel analytical model is developed that predicts the increase in pressure drop due to wall roughness in microtubes. The wall roughness is assumed to posses a Gaussian isotropic distribution. The present model is compared with experimental data, collected by other researchers and good agreement is observed.

Copyright © 2005 by ASME

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