Hi everybody, I am new to COMSOL and I need to model a 2D problem. I have two electrodes (a generator and a collector) immersed in a support electrolyte of 100mM of KCl in which there's a 1mM of Fe(CN6)^(4-) which will become Fe(CN6)^(3-). I need to analyze over time the concentration, taking into consideration the diffusion only (not the convection). Can you help me to set up the problem? I defined the geometry and the control volume, but now I'm stuck in the definition of the problem.
Andrea
Andrea