This paper describes ongoing research into the multi-physics model development of an electrorefining process for the treatment
of spent nuclear fuel. A forced convection of molten eutectic (LiCl–KCl) electrolyte in an electrorefining cell is considered
to establish an appropriate electro-fluid model within the 3-dimensional framework of a conventional computational fluid dynamic
model. This computational platform includes the electrochemical reaction rate of charge transfer kinetics which is described
by a Butler–Volmer equation, while mass transport is considered using an ionic transport equation. The coupling of the local
overpotential distribution and uranium concentration gradient makes it possible to predict the local current density distribution
at the electrode surfaces.