Hi, everyone
I have a question about the constraint force expression in the comsol model library "Vanadium Redox Flow Battery".
About the setting of Pointwise constraint, I know that in the first constraint expression edit field, the expression is equal to 0 according to Donnan potential, but in the constraint force expression edit field, what's the meaning of 'test(phil_neg+cH_neg/F_const-phil_m)'?
I have a question about the constraint force expression in the comsol model library "Vanadium Redox Flow Battery".
About the setting of Pointwise constraint, I know that in the first constraint expression edit field, the expression is equal to 0 according to Donnan potential, but in the constraint force expression edit field, what's the meaning of 'test(phil_neg+cH_neg/F_const-phil_m)'?