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Title: Fluid flow in microtubes with axial conduction including rarefaction and viscous dissipation
Authors: Çetin, Barbaros
Yazıcıoğlu, Almila Güvenç
Kakaç, Sadık
Keywords: microtube
slip flow
Knudsen number
axial conduction
viscous dissipation
Issue Date: 2008
Publisher: Pergamon-Elsevier Science Ltd
Abstract: Graetz problem inside the microtube is revisited considering rarefaction effect, viscous dissipation term and axial conduction in the fluid for uniform wall temperature boundary condition in the slip flow regime. The flow is assumed to be hydrodynamically fully developed, thermally developing, and the velocity profile is solved analytically. The temperature field is determined by the numerical solution of the energy equation. The rarefaction effect is imposed to the problem via velocity-slip and temperature jump boundary conditions. The local and fully developed Nu numbers are obtained in terms of dimensionless parameters; Pe, Kn, Br, K. Fully developed Nu numbers and the thermal entrance length are found to increase by the presence of the finite axial conduction. (C) 2008 Elsevier Ltd. All rights reserved.
ISSN: 0735-1933
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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