2018
DOI: 10.1063/1.5007084
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Investigation of the short argon arc with hot anode. II. Analytical model

Abstract: Short atmospheric pressure argon arc is studied numerically and analytically. In a short arc with interelectrode gap of several millimeters non-equilibrium effects in plasma play important role in operation of the arc. High anode temperature leads to electron emission and intensive radiation from its surface. Complete self-consistent analytical model of the whole arc comprising of models for near-electrode regions, arc column and a model of heat transfer in cylindrical electrodes was developed. The model predi… Show more

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Cited by 34 publications
(35 citation statements)
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“…[42] by comparison to the results of previous numerical studies [41] and in Ref. 43 by comparison to analytical solutions. Convective-diffusive transport of atomic carbon in the helium atmosphere was solved yielding a profile of carbon atoms density in the arcing volume and surrounding areas.…”
Section: Arc Modelmentioning
confidence: 84%
“…[42] by comparison to the results of previous numerical studies [41] and in Ref. 43 by comparison to analytical solutions. Convective-diffusive transport of atomic carbon in the helium atmosphere was solved yielding a profile of carbon atoms density in the arcing volume and surrounding areas.…”
Section: Arc Modelmentioning
confidence: 84%
“…In the previous theoretical studies 7,8,9 conductive heat flux to the cathode was neglected leading to overestimation of the ion current fraction. This question is addressed in more details in the accompanying paper 44 .…”
Section: Discussion Of the Near-cathode Regionmentioning
confidence: 99%
“…In the present study we provide a justification based on the results of simulations of the whole arc. This simplification will be used in the arc model presented in the accompanying paper 44 . Quantitative asymptotic relations for the nearcathode region voltage drop, electron temperature, ion current and for size of the region is presented in the accompanying paper 44 .…”
Section: Discussion Of the Near-cathode Regionmentioning
confidence: 99%
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