Fig. 1. Geometry of 1/4 PEMFC with open cathode and ducts
Fig. 2. Cross section of open cathode channels for PEMFC with three cases of duct (a) flat (b) spherical (c) concave
Fig. 4. Geometry of PEMFC with three cases of duct diameter(a) 20 mm (b) 40 mm (c) 60 mm
Fig. 5. Channel divisions of 1/4 Geometry cross section(a) Center (b) Outer edge
Fig. 6. Channel depth-Velocity distribution Diagram
Fig. 7. Velocity distribution of PEMFC cross section (x, y axis)
Fig. 8. The difference of flow pattern due to Duct Shape(a) flat (b) spherical (c) concave
Fig. 9. Duct diameter - Velocity distribution Diagram
Fig. 10. Velocity distribution of PEMFC cross section (z axis)
Fig. 11. Channel depth - Pressure drop diagram
Fig. 12. Duct diameter – Pressure drop diagram
Fig. 3. Cross section of open cathode channels for PEMFC with three cases of channel depth
Table 1. Grid dependency table
Table 2. Velocity distribution
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