Use the Electrode–Electrolyte Interface Coupling node to define a combined wall and inflow/outflow boundary condition based on current densities of one or multiple Electrode Reaction nodes in an Electrochemistry interface.

The flow is proportional to the Molar mass (kg/mol) of the reacting species, the current densities and the stoichiometric coefficients according to Faraday’s law as defined by summation over the Reaction Coefficient subnodes.

For information about this section, see the Wall node. No slip is the default, but Slip may in some cases be a more applicable, for instance if a gas diffusion electrode is modeled as a boundary condition.

Based on the number of species required for the model, use the Add () and Delete ) buttons under the table to add or remove Species. Then enter a value for the Molar mass (kg/mol) in the applicable rows for each species.