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Journal of Enhanced Heat Transfer

Published 8 issues per year

ISSN Print: 1065-5131

ISSN Online: 1563-5074

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 2.3 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.8 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.2 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00037 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.6 SJR: 0.433 SNIP: 0.593 CiteScore™:: 4.3 H-Index: 35

Indexed in

THE REASON THAT FLUID FLOW DISSIPATES THE SAME ENERGY BUT OBTAINS DIFFERENT CONVECTIVE HEAT TRANSFER INTENSITY

Volume 19, Issue 1, 2012, pp. 25-41
DOI: 10.1615/JEnhHeatTransf.2011003354
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ABSTRACT

To establish a theory for finding methods of convective heat transfer enhancement actively not passively, one must connect convective heat transfer with energy dissipation in flow locally. Fluid flow consumes the same mechanical energy, but produces different convective heat transfer intensities. This is the reason that different thermal boundary conditions yield different convection intensities. Based on the transport equation of heat flux, in this paper, we explain the above phenomenon through comparisons of the differences between convective heat transfers through a tube at different thermal boundary conditions in terms of the roles of velocity gradient and velocity. The results show that the convection of flux not only depends on velocity and velocity gradient, but also depends on heat or mass flux and their gradient; if the velocity gradient makes a larger contribution to the convection of heat flux in one case rather than in another, the former will have a higher convection intensity (that is, the strength of convection, which is specified generally by the Nusselt number on the wall surface), even though the same energy is dissipated by fluid flow. The method used in this paper is useful in finding methods to enhance heat transfer.

CITED BY
  1. Zhang Qiang, Wang Liang-Bi, Zhang Yong-Heng, The mechanism of heat transfer enhancement using longitudinal vortex generators in a laminar channel flow with uniform wall temperature, International Journal of Thermal Sciences, 117, 2017. Crossref

  2. Zhang Qiang, Wang Liang-Bi, The Reasons of Heat Transfer Enhancement in a Laminar Channel Flow With Uniform Heat Flux on the Wall Under a Pair of Longitudinal Vortex Generators Mounted on the Bottom Wall, Journal of Heat Transfer, 139, 12, 2017. Crossref

  3. Guo An-Ning, Wang Liang-Bi, The mechanism of laminar convective heat transfer enhancement enforced by twisting of elliptical tube, International Journal of Heat and Mass Transfer, 157, 2020. Crossref

  4. Li Chenhui, Zhang Chaofeng, Wu Meiping, Jiang Tongfei, Zhao Junhua, Optimisation design of the inlet of an emergency power supply cabin based on its heat dissipation characteristics, Australian Journal of Mechanical Engineering, 20, 1, 2022. Crossref

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