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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/4527

Title: Experimental determination of heat transfer coefficient in the slip regime and its anomalously low value
Authors: DEMSIS, A
VERMA, B
PRABHU, SV
AGRAWAL, A
Keywords: constant-wall-temperature
thermal-boundary conditions
couette-flow
rectangular microchannels
viscous dissipation
long microchannels
burnett equations
forced-convection
gaseous flows
fluid-flow
Issue Date: 2009
Publisher: AMER PHYSICAL SOC
Citation: PHYSICAL REVIEW E, 80(1), -
Abstract: In this paper, the measurement of the heat transfer coefficient in rarefied gases is presented; these are among the first heat transfer measurements in the slip flow regime. The experimental setup is validated by comparing friction factor in the slip regime and heat transfer coefficient in the continuum regime. Experimental results suggest that the Nusselt number is a function of Reynolds and Knudsen numbers in the slip flow regime. The measured values for Nusselt numbers are smaller than that predicted by theoretical or simulation results, and can become a few orders of magnitude smaller than the theoretical values in the continuum regime. The results are repeatable and expected to be useful for further experimentation and modeling of flow in the slip and transition regimes.
URI: http://dx.doi.org/10.1103/PhysRevE.80.016311
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4527
http://hdl.handle.net/10054/4527
ISSN: 1539-3755
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