A Look at the Multiphase Mixture Model for PEM Fuel Cell Simulations

摘要: Two-phase flows in polymer electrolyte membrane fuel cells (PEMFCs) are complex dynamic processes involving phase transitions and production due to concurrent processes. There have been attempts simulate these phenomena using the multiphase mixture (M 2 ) model. The conjecture is that M mathematically equivalent classical two-fluid models without invoking any additional approximations. We show model has a narrow applicability, limited or other For more situations, including those encountered PEMFCs, ceases correctly reflect conservation principles may lead predictions of unrealistic velocity scalar fields.