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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

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ISSN Druckformat: 1093-3611

ISSN Online: 1940-4360

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: 0.4 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: 0.1 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: 0.00005 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: 0.07 SJR: 0.198 SNIP: 0.48 CiteScore™:: 1.1 H-Index: 20

Indexed in

HYDRODYNAMIC AND ELECTRIC CHARACTERISTICS OF PLASMATRONS UNDER LAMINAR AND TURBULENT FLOW REGIMES

Volumen 11, Ausgabe 1, 2007, pp. 43-58
DOI: 10.1615/HighTempMatProc.v11.i1.40
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ABSTRAKT

Numerical simulation modeling of laminar and turbulent plasma flows of an electric arc in plasma torches (plasmatrons) are examined in a wide range of working parameters (flow rates, currents, and channel diameters). The hydrodynamic and electric characteristics of plasmatrons in laminar and turbulent flows regimes and low-temperature argon plasma in plasma torches channels are studied. These calculations have confirmed our results previously obtained from analytical solutions: a. the generalized Poiseuille velocity profile for the viscous non-isothermal plasma flow in the plasma torch; b. the influence of the non-monotonous dependence of dynamic viscosity on plasma temperature on a flow structure and a friction coefficient; c. the dependencies of an axial gradient of pressure and the friction coefficient on electrical currents, on flow rates of the plasma forming gas and on internal diameters of the channel; d. the non-monotonous variation of viscosity on the cross section of plasmatron channels is generally the main reason for occurrence of two band points in the plasma velocity profile. Use of the specified technique has allowed to generalize results of experiments, precisely find the border of a turbulent regime flow in electric arcs, and to establish critical value of "effective" Reynolds number (Reef)cr = 2000

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