Influence of the shape of the anode assembly inner channel on plasma flow velocity-Reference-Cited by-同舟云学术

Influence of the shape of the anode assembly inner channel on plasma flow velocity

Published:2024-04-13 Issue:1 Volume:166 Page:58-73
ISSN:2500-2198
Container-title:Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki
language:
Short-container-title:jour

Author:

Okulov R. A.¹,Krashaninin V. A.²,Gelchinsky B. R.²,Rempel A. A.²

Affiliation:

1. Institute of Metallurgy, Ural Branch, Russian Academy of Sciences; Ural Federal University named after the First President of Russia B.N.Yeltsin

2. Institute of Metallurgy, Ural Branch, Russian Academy of Sciences

Abstract

This article considers how the shape of the inner channel in the anode assembly affects plasma flow velocity in a plasma torch. Three different shapes of the anode assembly were analyzed, all with a conical confusor part of 50 mm in length: with a diameter transition from 12 to 6 mm, from 12 to 8 mm, and from 12 to 10 mm. A computer experiment was performed using the finite element method and then validated by the subsequent full-scale experiment on a laboratory plasma unit. The obtained results were verified. The verification outcomes showed a satisfactory convergence and were consistent with the published data. A review of the existing plasma unit designs for powder production, application of functional coatings, and surface modification was carried out. The software packages implementing the finite element method to solve these problems were examined. The study yielded practical recommendations for consumers and developers of plasma equipment and identified the shapes of the anode assembly enabling both supersonic and subsonic plasma flow regimes.

Publisher

Kazan Federal University

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