|About this Abstract
||Liquid Metal Processing & Casting Conference (LMPC 2019)
||Liquid Metal Processing & Casting
||3D Numerical Simulation of the VAR Consumable Electrode Melting Process
||Rayan Bhar, Alain Jardy, Pierre Chapelle, Vincent Descotes
|On-Site Speaker (Planned)
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 modelled with an enthalpy-porosity approach. The electric power supplied by the arc is supposed to be uniform and distributed between the electrode as well as the liquid bath. For a given electric arc power, the model quantitatively predicts the dripping and possible drip-shorts, hence the overall melt rate. Simulations are validated through comparisons with experimental data extracted from available literature.
||Definite: At-meeting proceedings