CURRENT DISTRIBUTION IN A JET THROUGH-HOLE SYSTEM DURING PERIODIC ELECTROLYSIS

A well-defined single jet through-hole system, which represents a spec ial case of impinging fluid jets, is selected to study the impact of p eriodic electrolysis on current distribution. A mathematical model, as well as an innovative numerical scheme based on the concept of stream line grid mesh, is developed to perform theoretical calculations. The results indicate that improvement of throwing power by means of the re ctangular pulse technique is not theoretically achievable. It is also demonstrated that the influence of periodic-reverse electrolysis is mo re pronounced on through-holes with low or medium aspect ratio (AR). F or high AR through-holes, it is ohmic resistance rather than mass tran sfer which imposes the critical limitation. The impact of kinetic and transient parameters is confined to the entrance region. Under such ci rcumstances, the impingement technique is not likely to be a feasible alternative even in conjunction with periodic-reverse potentials.