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Metallurgical and Materials Transactions B

3D Numerical Simulation of the Var Consumable Electrode Melting Process

  • 29-09-2020
  • Topical Collection: Liquid Metal Processing & Casting Conference 2019
Published in:
Authors
R. Bhar
A. Jardy
P. Chapelle
V. Descotes
Published in
Metallurgical and Materials Transactions B | Issue 6/2020

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Abstract

A 3D numerical model was set up to simulate the formation and dynamics of the liquid metal film under the consumable electrode during VAR process. In the present paper, the implementation of this model is described. It was developed using the open source computational fluid dynamics (CFD) software OpenFOAM. The model solves coupled momentum and energy equations combined with a volume of fluid (VOF) method to track the liquid metal free surface. The melting of the electrode material is modeled with an enthalpy-porosity approach. The electric power supplied by the arc is supposed to be uniformly distributed over the surface of the electrode tip. For a given electric arc power, the model enables to quantitatively predict the dripping rate and hence the overall melt rate. Besides the thermal behavior of the electrode, simulation results illustrate the dynamics of the liquid film and the transfer mechanisms of the liquid metal during VAR melts performed with short and long interelectrode gaps.

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previous article Feedback-Based Control Over the Spatio-Temporal Distribution of Arcs During Vacuum Arc Remelting via Externally Applied Magnetic Fields
next article Compositional Dependence of Thermal Conductivity of Molten Cu-Fe Alloy at Low Fe Contents
Title
3D Numerical Simulation of the Var Consumable Electrode Melting Process
Authors
R. Bhar
A. Jardy
P. Chapelle
V. Descotes
Publication date
29-09-2020
Publisher
Springer US
Published in
Metallurgical and Materials Transactions B / Issue 6/2020
Print ISSN: 1073-5615
Electronic ISSN: 1543-1916
DOI
https://doi.org/10.1007/s11663-020-01966-x
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Investigating Dynamic Thermal Behavior of Continuous Casting of Steel with CONOFFLINE

A Novel Ammonium Chloride Roasting Approach for the High-Efficiency Co-sulfation of Nickel, Cobalt, and Copper in Polymetallic Sulfide Minerals

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