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Journal of Enhanced Heat Transfer
Facteur d'impact: 0.562 Facteur d'impact sur 5 ans: 0.605 SJR: 0.175 SNIP: 0.361 CiteScore™: 0.33

ISSN Imprimer: 1065-5131
ISSN En ligne: 1026-5511

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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v17.i4.30
pages 313-329

Fluted Helix Channel Heat Transfer along a Vertical Tube

Ning Mei
College of Engineering, Ocean University of China
Jie Zhao
College of Engineering, Ocean University of China
Yuan-Cheng Xu
College of Engineering, Ocean University of China

RÉSUMÉ

The paper investigates (a) thin film formation and (b) falling film heat transfer along a twisted and fluted helix channel on the surface of a vertical tube. Flow and heat transfer of a single-component liquid on the surface on a fluted helix tube are considered and investigated by both numerical simulation and experimental observation. It is found from the numerical study that in certain parameter regimes, the flow and temperature fields can be solved in a closed form. It is seen from experimental results that thin films can uniformly cover the surface of the tube and possess relatively higher heat transfer coefficient.


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