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Microtube Fluid Dynamic Characteristics With MTV Qualified Flow Conditions

[+] Author Affiliations
Spencer Petersen, Daniel Costaschuk, John Elsnab, Joseph Klewicki, Timothy Ameel

University of Utah, Salt Lake City, UT

Paper No. ICMM2005-75096, pp. 251-258; 8 pages
doi:10.1115/ICMM2005-75096
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

Deionized water flows in fused silica microtubes, with nominal diameters of 100, 320, and 1000-μm were studied. Flow conditions produced Reynolds numbers in the range 150 < Re < 11,000. Critical Reynolds number was found to be in the range of 2180 < Recr < 2450 for the three tube sizes. The average Poiseuille number was 76.9 ± 5%. Experimental turbulent data was in excellent agreement with the Colebrook equation. Molecular tagging velocimetry was used to further validate transition; Recr was in agreement with that determined by the integral technique.

Copyright © 2005 by ASME

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