Hello,
Using transport of diluted species,
I am trying to model the acutation of an impc (ionic polymer metal composite) and as a first step i am trying to solve PNP equations for the conecntartion & charge distribution inside membrane.
the problem i am having is with the boundary conditions, i cant find a way to specify a negative fixed charge inside the membrane.
i specified an input voltage and a ground, the initial concentrations but the fixed charge i am having trouble with
**the impc is a nafion or flemion membrane with electrodes deposited on it's surafce under a potential difference the cation concentartion inside the membrane changes reulting in actuation