Simulation of conducting liquid flow around two non-conducting particles in the presence of a dc electromagnetic field (oblique configuration of particles to the field)

摘要

In order to analyse the interactions of non-metallic (non-conducting) inclusions in (conducting) liquid metals in the presence of an electromagnetic (em) field, a simple system of two spherical particles was studied. This study dealt with particles in a row in an oblique configuration with respect to the dc em-field.The interaction force between the particles and the migration force exerted on them were calculated, taking into account the effect of electromagnetically driven flow (em-flow) of the liquid.The state of em-flow had essentially the same features as the non-oblique cases; however, a strong downward flow was generated on the particle side. In contrast to the bulk em force the magnitude of the migration force became lower. A small (relative) repulsive force existed between the two particles, which is related to the anti-clockwise rotating forces of the particle pair.The results obtained give valuable insight into the case that takes into account the particle coagulation and transportation in the em processing of metals.