The effects of corrugated surface roughness on developed laminar flow in microtubes are investigated. The momentum equation is solved using a perturbation method with slip at the boundary. Novel analytical models are developed to predict friction factor and pressure drop in corrugated rough microtubes for continuum flow and slip flow. The developed model proposes an explanation on the observed phenomenon that some experimental pressure drop results for microchannel flow have shown a significant increase (15–50%) due to roughness. The developed model for slip flow illustrates the coupled effects between velocity slip and small corrugated roughness. Compressibility effect has also been examined and simple models are proposed to predict the pressure distribution and mass flow rate for slip flow in corrugated rough microtubes.
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March 2008
Research Papers
Effects of Corrugated Roughness on Developed Laminar Flow in Microtubes
Zhipeng Duan,
Zhipeng Duan
Faculty of Engineering and Applied Science,
Memorial University of Newfoundland
, St. John’s, NL, A1B 3X5, Canada
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Y. S. Muzychka
Y. S. Muzychka
Faculty of Engineering and Applied Science,
Memorial University of Newfoundland
, St. John’s, NL, A1B 3X5, Canada
Search for other works by this author on:
Zhipeng Duan
Faculty of Engineering and Applied Science,
Memorial University of Newfoundland
, St. John’s, NL, A1B 3X5, Canada
Y. S. Muzychka
Faculty of Engineering and Applied Science,
Memorial University of Newfoundland
, St. John’s, NL, A1B 3X5, CanadaJ. Fluids Eng. Mar 2008, 130(3): 031102 (7 pages)
Published Online: March 3, 2008
Article history
Received:
October 19, 2006
Revised:
November 18, 2007
Published:
March 3, 2008
Citation
Duan, Z., and Muzychka, Y. S. (March 3, 2008). "Effects of Corrugated Roughness on Developed Laminar Flow in Microtubes." ASME. J. Fluids Eng. March 2008; 130(3): 031102. https://doi.org/10.1115/1.2842148
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