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Analysis of Laminar Flow Through Internally Finned Tube  

정호열 (전남대학교 기계공학과)
정재택 (전남대학교 자동차공학부)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.14, no.3, 2002 , pp. 254-260 More about this Journal
Abstract
There have been many studies for the flow through internally finned tube, since the heat exchangers with fin device derive much attention in heat transfer enhance cent. In this study, analysis of laminar flow through the circular tube with longitudinal fins are investigated. The height and the number of fins are arbitrary. The flow field is assumed to be laminar and conformal mapping is used to obtain analytic solution. From the analytic solution, equi-velocity lines are shown, and the flow rate through the finned tube is calculated for various fin heights and numbers of fins. Darcy friction factor for this finned tube and shear stress distributions on the wall and fin are also considered.
Keywords
Heat exchangers; Circular tube; Conformal mapping; Effective diameter; Darcy friction factor; Fin;
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