NUMERICAL MODELING OF A DC NON-TRANSFERRED PLASMA TORCH: MOVEMENT OF THE ARC ANODE ATTACHMENT AND RESULTING ANODE EROSION - Archive ouverte HAL Access content directly
Journal Articles High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes Year : 2005

NUMERICAL MODELING OF A DC NON-TRANSFERRED PLASMA TORCH: MOVEMENT OF THE ARC ANODE ATTACHMENT AND RESULTING ANODE EROSION

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Abstract

This paper describes a 3-D transient modeling of a DC plasma spray torch. The model of the arc column and its attachment on the anode wall is based on the simultaneous solutions of the conservation equations of mass, momentum, energy and the electromagnetism equations. It makes it possible to predict the motion of the anode attachment root on the anode surface as well as the heat load input to the anode surface at the spot location. The heat flux to anode is afterwards used as an input data for a 1-D enthalpy formulation model of anode heating that predicts the time-evolution of the thickness of the liquid layer on the surface at the anode spot and the quantity of vaporized material.
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Dates and versions

hal-00019717 , version 1 (27-02-2006)

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C. Baudry, Armelle Vardelle, Gilles Mariaux, M'Hammed Abbaoui, A. Lefort, et al.. NUMERICAL MODELING OF A DC NON-TRANSFERRED PLASMA TORCH: MOVEMENT OF THE ARC ANODE ATTACHMENT AND RESULTING ANODE EROSION. High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, 2005, 9, pp.1-15. ⟨10.1615/HighTempMatProc.v9.i1⟩. ⟨hal-00019717⟩
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