  An innovative model is presented for merging of bubbles inside a liquid
metal. The proposed model is based on forming a thin film (narrow channel)
between merging bubbles during growth. Rupturing of the film occurs when an
oscillation in velocity and pressure arises inside the channel followed by
merging of the bubbles. The proposed model based on lattice Boltzmann Method is
capable of simulating merging bubbles in micro, meso, and macro-scales with no
limitation on the number of bubbles. Experimental studies reveal a good
consistency between modeling results and real conditions.
