This paper provides concise specifications where idealized Poiseuille flow is applicable in representing one-dimensional flow through wide, thin, rough microchannels subjected to prescribed pressures at the channel ends. Starting with the general (compressible) form of the Navier-Stokes equations, new expressions which discuss the effect of body forces on flow through thin channels are first presented, leading to upper and lower bounds on channel reference velocity where idealized Poiseuille flow dominates. These results are combined with previously published studies related to the predicability of flow through stochastically rough surfaces. An arbitrarily chosen microchannel model based loosely on a previously published experimental test setup is used as a sample application.
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ASME 2003 1st International Conference on Microchannels and Minichannels
April 24–25, 2003
Rochester, New York, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-3667-3
PROCEEDINGS PAPER
Flow Through Rough Microchannels: A Lubrication Perspective
S. Boedo
S. Boedo
Rochester Institute of Technology, Rochester, NY
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S. Boedo
Rochester Institute of Technology, Rochester, NY
Paper No:
ICMM2003-1053, pp. 441-448; 8 pages
Published Online:
February 24, 2009
Citation
Boedo, S. "Flow Through Rough Microchannels: A Lubrication Perspective." Proceedings of the ASME 2003 1st International Conference on Microchannels and Minichannels. 1st International Conference on Microchannels and Minichannels. Rochester, New York, USA. April 24–25, 2003. pp. 441-448. ASME. https://doi.org/10.1115/ICMM2003-1053
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