Heat transfer in microtubes with viscous dissipation

Heat transfer in microtubes with viscous dissipation

Convective heat transfer for steady state, laminar, hydrodynamically developed flow in microtubes with uniform temperature and uniform heat flux boundary conditions are solved by the integral transform technique. Temperature jump condition at the wall and viscous heating within the medium are includ...

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Veröffentlicht in:International journal of heat and mass transfer 2001-07, Vol.44 (13), p.2395-2403
Hauptverfasser: Tunc, Gokturk, Bayazitoglu, Yildiz
Format: Artikel
Sprache:eng
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Applied sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Heat transfer
Theoretical studies. Data and constants. Metering
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container_title International journal of heat and mass transfer
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creator Tunc, Gokturk
Bayazitoglu, Yildiz
description Convective heat transfer for steady state, laminar, hydrodynamically developed flow in microtubes with uniform temperature and uniform heat flux boundary conditions are solved by the integral transform technique. Temperature jump condition at the wall and viscous heating within the medium are included. The solution method is verified for the cases where viscous heating is neglected. For uniform temperature case, with a given Brinkman number, at specified axial lengths, the viscous effects are presented for the developing range, reaching the fully developed Nusselt number. The effect of viscous heating is investigated for both of the cases where the fluid is being heated or cooled. Prandtl number analysis has shown that, as we increase the Prandtl number the temperature jump effect diminishes which gives a rise to the Nusselt number.
doi_str_mv 10.1016/S0017-9310(00)00298-2
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subjects Applied sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Heat transfer
Theoretical studies. Data and constants. Metering
title Heat transfer in microtubes with viscous dissipation
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