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Heat Transfer Research

Publication de 18  numéros par an

ISSN Imprimer: 1064-2285

ISSN En ligne: 2162-6561

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: 1.7 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: 1.4 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: 0.6 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: 0.00072 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: 0.43 SJR: 0.318 SNIP: 0.568 CiteScore™:: 3.5 H-Index: 28

Indexed in

MODELING OF FLUID FLOW AND HEAT TRANSFER OF AA1050 ALUMINUM ALLOY IN A MODERN LOW-HEAD DIRECT-CHILL SLAB CASTER

Volume 48, Numéro 7, 2017, pp. 625-656
DOI: 10.1615/HeatTransRes.2016013742
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RÉSUMÉ

A low-head hot-top mold is modeled for the vertical direct-chill casting (DCC) process where the melt is assumed to have been delivered through the entire top cross section of the caster. The previously verified in-house 3D Computational Fluid Dynamics (CFD) code is extended to model an industrial-sized AA1050 slab for the above caster for steady-state operation. For the generalization of the predicted results, nondimensional parameters governing this problem were identified. To keep consistency with the industrial cooling strategy, a stepwise change of the cooling water temperature in the mold, in the impingement and in free streaming regions was considered. A series of parametric studies were conducted by varying the important DCC process parameters, namely the casting speed ranging from 60 to 180 mm/min, inlet melt superheat, ranging from 16°C to 64°C, as well as the effective heat transfer coefficient (HTC) at the metal–mold contact region, varying from 0.75 to 3.0 kW/(m2·K). The velocity field, the temperature distributions, and the local surface temperature profiles are presented and discussed. The sump depth and the mushy thickness at the ingot center are seen to increase linearly with the increasing casting speed, whereas the shell thickness at the exit of the mold decreases linearly with the casting speed. The thickness of the solid shell at the mold exit is increased by about 4% for the aforementioned increase in HTC. Correlations of the above-mentioned quantities with casting speed are reported to provide useful guidelines for vertical DCC design engineers and operators.

CITÉ PAR
  1. Chaurasiya Vikas, Rai K.N., Singh Jitendra, A study of solidification on binary eutectic system with moving phase change material, Thermal Science and Engineering Progress, 25, 2021. Crossref

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