Publication de 8 numéros par an
ISSN Imprimer: 1065-5131
ISSN En ligne: 1563-5074
Indexed in
Numerical Study of Turbulent Flow and Heat Transfer in Micro-Fin Tubes – Part 2, Parametric Study
RÉSUMÉ
The effect of the micro-fin tube geometric parameters on the Nusselt number (Pr = 1) and friction factor in single-phase turbulent flow was determined by numerically simulating 16 different tube geometries. These results were compared with empirical predictions obtained from a correlation developed by Narayanamurthy. The present study investigated the change of fricton factor and Nusselt number with variation of the geometric parameters. The geometric parameters, which were studied, are helix angle, number of fins, fin height, apex angle and top flat width. Explanations for how the fin geometry changes affected the flow in the interim and core region are given.
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Goldstein R.J, Eckert E.R.G, Ibele W.E, Patankar S.V, Simon T.W, Kuehn T.H, Strykowski P.J, Tamma K.K, Heberlein J.V.R, Davidson J.H, Bischof J, Kulacki F.A, Kortshagen U, Garrick S, Heat transfer––a review of 2001 literature, International Journal of Heat and Mass Transfer, 46, 11, 2003. Crossref
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Mann Garrett W., Eckels Steven, Multi-objective heat transfer optimization of 2D helical micro-fins using NSGA-II, International Journal of Heat and Mass Transfer, 132, 2019. Crossref
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Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Flow Boiling Enhancement Techniques, in Two-Phase Heat Transfer Enhancement, 2020. Crossref
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Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Internally Finned Tubes and Spirally Fluted Tubes, in Heat Transfer Enhancement in Externally Finned Tubes and Internally Finned Tubes and Annuli, 2020. Crossref
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Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Advanced Internal Fin Geometries and Finned Annuli, in Heat Transfer Enhancement in Externally Finned Tubes and Internally Finned Tubes and Annuli, 2020. Crossref
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Li Puxuan, Campbell Matthew, Zhang Ning, Eckels Steve J., Investigation of Relationship Between Flow Structures and Drag Forces on Microfin Enhanced Surfaces Using Large Eddy Simulations, Journal of Fluids Engineering, 144, 10, 2022. Crossref