A theoretical approach based on experimental operating data, with the aim to simulate the molten material movements under the effect of the laser beam and the gas jet, under normal atmospheric conditions is developed. A 2D numerical modeling allows to investigate the surface tension effect on the metallic film behavior. We deal with a multiphase problem, where the air-liquid metal interface is submitted to the gas jet effect. The interface is tracked by implementation of the Volume Of Fluid method through Fluent CFD code. A gaussian beam shape profile is studied in our simulations.

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