Numerical investigations Computational fluid dynamics 4 Cooling 3 Drops 3 Flow fields 3 Heat flux 3 Heat transfer 3 Proton exchange membrane fuel cells (PEMFC) 3 Reynolds number 3 Aspect ratio 2 Channel flow 2 Cooling flows 2 Cooling plates 2 Electric discharges 2 Experimental investigations 2 Flow induced 2 Flow-field design 2 Honeycomb structure flow field 2 Honeycomb structures 2 Laminar flow 2 Numerical methods 2 Numerical optimizations 2 Plates (structural components) 2 Pressure drop 2 Proton-exchange membranes fuel cells 2 Serpentine 2 Spiral flow 2 Stress concentration 2 Structural optimisations 2 Structural optimization 2