The dynamics of the PEM fuel cell is an important issue of current research.The dynamic process of generation and transport of liquid water is crucial for the performance of the fuel cell.In this contribution we apply a novel dynamic and two-phase PDE model of a PEM fuel cell to investigate the fuel cell dynamics.The mathematical model is time-dependent,one-dimensional and isothermal.It accounts for the transport of the species,the transport of liquid water,the charge transfer and the dynamics of the membrane humidification.The phase transition between water vapor and liquid water is considered.The couplings between the transport phenomena are included in the model.
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