Computational modeling of ion transport in electrodeposition

G. MARSHALL; F. V. MOLINA; S. DENGRA,; E. MOCSKOS; E. ARIAS

Applications of Computational Mechanics in Structures and Fluids

CINME, Universidad Politecnica de Barcelona

Lugar: Barcelona; Año: 2005; p. 40 - 57

Ion transport and growth morphology in thin-layer cells are studied throughtheoretical and computational modeling. The theoretical macroscopic model is based onfrst principles, using the Nernst-Planck equations for ion transport, the Poisson equationfor the electrostatic potential and the Navier-Stokes equations for the uid  ow. Numericalsimulations in realistic cell configurations using serial and parallel computing are presented.In the parallel simulations, use is made of domain decomposition techniques with a stronglyimplicit iterative method and its implementation in a 16 node Beowulf cluster under MPIand Linux. This allows the utilization of very fine grids in highly distorted domains with amore realistic physical parametrization and results in a robust algorithm attaining almostlinear speedup. Theory and simulations, in gravitoconvective prevailing conditions, predictamong many other features, space-time vortex tube fronts evolution, in close agreementwith the results observed in the experiments.