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A Study on Numerical Analysis for Heat Transfer and Flow Characteristics in a Ribbed Tube  

Jeon, Jeong-Do (동아대학교 대학원 기계공학과)
Jeon, Eon-Chan (동아대학교 기계공학과)
Jeung, Hui-Gyun (성진지오텍(주) 기술연구소)
Lee, Chi-Woo (경남과학기술대학교 자동차공학과)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.10, no.6, 2011 , pp. 134-139 More about this Journal
Abstract
This study was conducted on the characteristics of fluid flow and heat transfer in the ribbed tube used for a steam power plant. It was assumed that the air is incompressible and therefore, its density is not variable according to temperature. In addition, the gravity was ignored. A commercial code of computational fluid dynamics was used and standard k-$\epsilon$ model was used together with the energy equation included to calculate heat transfer. As Reynolds No. was low at the velocity distribution in the axial direction, the air reached hydro-dynamically fully developed region shortly but high Reynolds No. yielded late full hydro-dynamic development. The velocity distribution and non-dimensional temperature distribution were all physically reasonable and thus had a good agreement with the experimental result.
Keywords
Steam Power Plant; Ribbed Tube; Non-dimensional Temperature; Energy Equation; Standard k-$\epsilon$ Model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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