Use the Impressed Current Point node to control the potential difference between a sense s, sense (V) and a reference s, ref (V) potential, which both are defined globally.

The desired potential difference Eimpr (V) is achieved by adding an electrolyte point source at the selection of the impressed current point, using an added global dependent variable left to “float” in order to fulfill the control condition.

The node is exclusive and is applicable to internal and external boundaries to Electrolyte domains. The node is active if Enable Cathodic Protection Features check box is enabled at the interface node.