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Computational Thermal Sciences: An International Journal

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ISSN Druckformat: 1940-2503

ISSN Online: 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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TURBULENT FREE CONVECTION IN A VERTICAL CHANNEL WITH ISOTHERMAL WALLS: NEW FORMULATION AND THE RESISTOR-NETWORK MODEL

Volumen 11, Ausgabe 1-2, 2019, pp. 131-145
DOI: 10.1615/ComputThermalScien.2018021319
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ABSTRAKT

The three-temperature problem of turbulent free convection of air in a vertical channel with isothermal walls is studied. An extension of the Newton law of cooling is used to formulate the problem in terms of three temperature differences, that is, without resorting to the use of some effective temperature difference. The dQdT technique was applied numerically to calculate the coefficients of this formulation. Numerical dQdT entails a baseline solution to the full set of governing equations and subsequent solutions to the linearized energy equation with perturbed boundary conditions. The low-Reynolds k-ε turbulence model was used to obtain baseline solutions that were validated against experimental data from the literature. The application of the dQdT technique to a variable-property turbulent free convection problem is discussed. Sample results are presented for different heating scenarios, flow rates, and channel aspect ratios. It is shown that the three-temperature problem can be approximated by a delta network of three convective resistances, connecting three temperature nodes representing the isothermal boundaries.

REFERENZIERT VON
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  2. Preet Sajan, Mathur Jyotirmay, Mathur Sanjay, Influence of geometric design parameters of double skin façade on its thermal and fluid dynamics behavior: A comprehensive review, Solar Energy, 236, 2022. Crossref

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