A superposition approach to study slip-flow forced convection in straight microchannels of uniform but arbitrary cross-section

Hooman, K. (2008) A superposition approach to study slip-flow forced convection in straight microchannels of uniform but arbitrary cross-section. International Journal of Heat and Mass Transfer, 51 15-16: 3753-3762.

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Author Hooman, K.
Title A superposition approach to study slip-flow forced convection in straight microchannels of uniform but arbitrary cross-section
Journal name International Journal of Heat and Mass Transfer   Check publisher's open access policy
ISSN 0017-9310
Publication date 2008-07-15
Sub-type Article (original research)
DOI 10.1016/j.ijheatmasstransfer.2007.12.014
Volume 51
Issue 15-16
Start page 3753
End page 3762
Total pages 10
Editor W. J. Minkowycz
Place of publication Oxford, U.K.
Publisher Pergamon Press
Collection year 2009
Language eng
Subject 290000 Engineering and Technology
290603 Membrane and Separation Technologies
C1
0913 Mechanical Engineering
970102 Expanding Knowledge in the Physical Sciences
Abstract This work presents a superposition approach to investigate forced convection in microducts of arbitrary cross-section, subject to H1 and H2 boundary condition, in the slip-flow regime with further complication of a temperature jump condition assumption. It is shown that applying an average slip velocity and temperature jump definition, one can still use the no-slip/no-jump results with some minor modifications. Present results for slip flow in microchannels of parallel plate, circular, and rectangular cross-sections are found to be in complete agreement with those in the literature. Application of this methodology to microchannels of triangular cross-section is also verified by comparing the present results with those obtained numerically by undertaking the commercially available software CFD-ACE.
Keyword Microscale
MEMS
Velocity slip
Temperature jump
superposition
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