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The Effect of Reciprocating Motion on Heat Transfer in the Roughened Rectangular Channel  

안수환 (경상대학교 수송기계공학부 해양산업연구소)
손강필 (경상대학교 대학원 기관공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.26, no.6, 2002 , pp. 646-652 More about this Journal
Abstract
The influence of reciprocating frequency and radius on heat transfer in the roughened rectangular channel is experimentally investigated. The aspect ratio (width/height) of the duct is 2.33 and the rib height is one fifteenth of the duct height. And the ratio of rib-to-rib distance to rib height is 10. The discrete ribs were periodically attached to the button wall of the duct with a parallel orientation. The parametric test matrix involves Reynolds number, reciprocating, and reciprocating radius, in the ranges, 1,000∼6,000, 1.7∼2.5 HB and 7∼15cm, respectively. The combined effects of reciprocating frequency and reciprocating radius have considerable influence on the heat transfer due to the modified vortex flow structure.
Keywords
Heat Transfer; Reciprocating Frequency; Rectangular Channel; Two Dimensional Ridge Type Roughness;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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