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Computational Thermal Sciences: An International Journal

Publicado 6 números por año

ISSN Imprimir: 1940-2503

ISSN En Línea: 1940-2554

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: 1.5 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 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: 0.3 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: 0.00017 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: 0.28 SJR: 0.279 SNIP: 0.544 CiteScore™:: 2.5 H-Index: 22

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SPLITTING THE CONTRIBUTIONS OF VELOCITY AND VELOCITY GRADIENT TO THE TRANSPORT OF HEAT FLUX IN LAMINAR CONVECTION THROUGH A SQUARE DUCT WITH UNIFORM WALL TEMPERATURE

Volumen 2, Edición 5, 2010, pp. 439-454
DOI: 10.1615/ComputThermalScien.v2.i5.40
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SINOPSIS

The convective heat transfer process can be described through a process parameter, heat flux defined by Fourier's law, which results in the convective transport equation of heat flux. To find more support for the efficiency of using a heat flux transport equation, this paper (i) reports the heat flux transport equation in more a general convective heat transfer case, (ii) discusses conservation of heat flux on a control volume, and (iii) splits contributions of velocity and velocity gradient to the transport of heat flux in laminar convection through a square duct with uniform wall temperature. The main results can be summarized as follows. In a more general case, the transport equation of heat flux has source terms related to the gradient of thermal conductivity, the difference of thermal conductivity with respect to time, and the gradient of (ρcp) or (ρc). Furthermore, the volumetric integrations of the diffusion term and the convection term caused by velocity are related to integrations of fluxes through the boundaries of a control volume; other terms are the volumetric sources of the conserved quantity. Third, for laminar convection through a square duct, the contributions of velocity and velocity gradient to the convective transport of heat flux can be split.

CITADO POR
  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. M. Pavan Kumar Reddy, J. V. Ramana Murthy, Entropy analysis for heat transfer in a rectangular channel with suction, Heat Transfer-Asian Research, 48, 7, 2019. Crossref

  3. 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

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