Boundary (Figure 1)

Condition expressions

Anode inlet (Boundary A^I-B^I)

, ,

Cathode inlet (Boundary G^I-H^I)

, ,

Anode outlet (Boundary A-B)

Cathode outlet (Boundary G-H)

Anode flow channel-anode diffusion layer interface (Boundary B-B^I)

,

cathode flow channel-cathode diffusion layer interface (Boundary G-G^I)

,

Anode diffusion layer-anode reaction layer interface(Boundary C-C^I)

, ,

Cathode diffusion layer-cathode reaction layer interface (Boundary F-F^I)

, ,

Anode reaction layer-electrolyte interface

(Boundary D-D^I)

, ,

Cathode reaction layer-electrolyte interface (Boundary E-E^I)

, ,