Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 112, Issue -, Pages 553-558Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2017.01.101
Keywords
Corrugated microtube; Gaseous slip flow; Conformal mapping; Analytical solution; Forced convection
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Funding
- Chilean Grant Agency FONDECYT [1130346]
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Forced convection heat transfer in fully developed gaseous laminar slip flow in transversally corrugated micropipes is investigated for first-order slip boundary conditions on the wall. The governing equations subject to first-order slip boundary conditions are solved analytically by means of the epitrochoid conformal mapping. Closed-form exact expressions are obtained for the velocity and temperature fields for the first time. The effects of the corrugation on the pressure drop and heat transfer rate are discussed in detail. Exact results obtained in this paper are compared with the recent approximate analytical solution in the literature, Sadeghi et al. (2011) [1]. (C) 2017 Elsevier Ltd. All rights reserved.
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