NDLI: Effects of Creep Flow and Viscous Dissipation in the Slip Regime for Isoflux Rectangular Microchannels

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Rij, Jennifer Van Ameel, Tim Harman, Todd
Copyright Year	2007
Abstract	The effects of rarefaction on convective heat transfer and pressure drop characteristics are numerically evaluated for uniform wall heat flux rectangular microchannels. Results are obtained by numerically solving the momentum and energy equations with both first- and second-order slip velocity and temperature jump boundary conditions. The resulting velocity and temperature fields are then evaluated to obtain the microchannel Poiseuille and Nusselt numbers. In addition to the effects of rarefaction, the effects of aspect ratio, thermal creep flow, and viscous dissipation are investigated for locally fully developed Poiseuille and Nusselt numbers. The constant wall heat flux results obtained in this study are compared to constant wall temperature results obtained previously, using the same numerical algorithm, at various aspect ratios including the limiting case of parallel plate microchannels. In addition to supplying previously unreported data on slip flow convective heat transfer and pressure drop characteristics, these results verify the numerical algorithm for more complex future slip flow analyses.
Starting Page	971
Ending Page	978
Page Count	8
File Format	PDF
ISBN	079184305X
DOI	10.1115/IMECE2007-42619
e-ISBN	0791838129
Volume Number	Volume 11: Micro and Nano Systems, Parts A and B
Conference Proceedings	ASME 2007 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2007-11-11
Publisher Place	Seattle, Washington, USA
Access Restriction	Subscribed
Subject Keyword	Slip flow Temperature Creep Momentum Flow (dynamics) Convection Heat flux Microchannels Wall temperature Algorithms Energy dissipation Pressure drop Boundary-value problems
Content Type	Text
Resource Type	Article

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