[bamiao0823]

hi 1 am working on numerical study on PEMFC using fluent, but i meet many questions and did't konw the answer, could you do me a favor?

firstly,while difine boundary types, we have to choose face of channel and gas diffuse layer.for channel ,Are these faces include all the faces of the channel except for inlet, outlet and the face which contact with gas diffuse layer? Are faces of gas diffuse layer include two face that contact with channel and catalyst layer?

secondly, i see in many papers ,bipolar plate is abandoned, but how to define current collector and terminal with bipolar plate in the model.

finally, where can we get current density after the calculation to get I-V curve, and my result of the simulation is 9.18A/m^2, which is too small compared with status in other papers. Do you know why?

Thank you very much！ SOS help me…… waitting online