Abstract: Magnet-hydr-dynamics (MHD) module loading current and voltage coupled with a VOF (volume of fluid) model for the phases (i.e.， steel and slag) distribution have been employed to investigate the formation of droplet during electroslag remelting. The results indicate that the amount of droplets increase with the increasing of filling ratio and the dimension of droplets increase with the increasing of electrode tip angle and interfacial tension. However， the amount and dimension of droplets decrease with the increasing of input current. Some large droplets could be tore into pieces by various forces including electromagnetic force， gravity， buoyancy and so on. In addition， multiple unsymmetrical eddies exist due to stochastic droplet dripping and uneven thermal field distribution.

Key words: electroslag remelting, droplet, simulation, filling ratio, interfacial tension