Definitions
The zinc ion concentration is no longer constant. Modify the zinc concentration variable to be dependent on the local concentration. This can be done by defining the following variable.
Variables I
1
In the Model Builder window, under Component 1 and Definitions click Variables 1
.
2
In the table, add the following settings:
Name
Expression
Unit
Description
c_Zn2
c
mol/m
³
Zinc ion concentration (used in above expressions)
The name of this variable is 'c' by default in the Transport of Diluted Species interface. The equilibrium potential and exchange current density for the zinc electrode are dependent on the local concentration of zinc ions.