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

Published 4 issues per year

ISSN Print: 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

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PROPERTIES OF ARC DISCHARGE WITH HYBRID STABILIZATION: IMPACT OF DIFFERENT PHYSICAL AND NUMERICAL ASSUMPTIONS

Volume 10, Issue 4, 2006, pp. 501-514
DOI: 10.1615/HighTempMatProc.v10.i4.20
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ABSTRACT

Processes in the worldwide unique type of thermal plasma generator with water vortex stabilization and combined stabilization of arc by argon flow and water vortex have been numerically studied. Two-dimensional axisymmetric numerical model assumes laminar and compressible plasma flow in the state of local thermodynamic equilibrium. Radiation losses from the arc are involved by the partial characteristics methods for atmospheric pressure water and argon-water discharges. The aim of this paper is to study the impact of different physical and numerical assumptions on the overall arc performance. The following problems have been studied: 1) the change of arc parameters with the density of numerical grid, 2) the influence of the first and second order density differencing on the calculated results, 3) the impact of pressure-dependence of radiation losses and plasma density on arc parameters. Numerical experiments proved that results obtained with the grids denser than 60 × 40 points in the axial and radial directions respectively are practically grid-independent. Results carried out with the more accurate second order density differencing at the main control volumes faces are within 7 % of our previously published results. The dependence of radiation losses and plasma density on pressure influences mainly plasma velocity and power losses from the arcs.

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