scispace - formally typeset
Search or ask a question
Author

Rayan Bhar

Other affiliations: University of Lorraine
Bio: Rayan Bhar is an academic researcher from Aperam. The author has contributed to research in topics: Electric arc & Volume of fluid method. The author has an hindex of 1, co-authored 2 publications receiving 3 citations. Previous affiliations of Rayan Bhar include University of Lorraine.

Papers
More filters
Journal ArticleDOI
TL;DR: In this paper, 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, which was developed using the open source computational fluid dynamics (CFD) software OpenFOAM.
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.

7 citations

08 Sep 2019
TL;DR: In this article, 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, which was developed using the open source computational fluid dynamics (CFD) software OpenFOAM.
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.

6 citations


Cited by
More filters