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Building mesh at PEM FuelCell(PEMFC)'s Anode & Cathode

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hello, im a university student in KOREA. these days, i study about FuelCell.

I tried to make model of 3by3 PEMFC using COMSOL 5.3. I already make geometry n physics about Anode & Cathode 's Chanels, GDLs, electrodes, membrane. BUT there are some problem about building mesh at GDLs, electrodes, membrane.

i tried to build mesh at (1)both Channels, (2)both face using Free tetrahedral & Free triangular. Next, i choose Swept mesh to build mesh at GDLs, electrodes, membrane. but it was failed to buinding.

error mesages are "Failed to create swept mesh for domain.", "Source and destination faces must be specified."

then, how can i build mesh for this structure? could you recommand step of building mesh?

thanks hello, im a university student in KOREA. these days, i study about FuelCell.

I tried to make model of 3by3 PEMFC using COMSOL 5.3. I already make geometry n physics about Anode & Cathode 's Chanels, GDLs, electrodes, membrane. BUT there are some problem about building mesh at GDLs, electrodes, membrane.

i tried to build mesh at (1)both Channels, (2)both face using Free tetrahedral & Free triangular. Next, i choose Swept mesh to build mesh at GDLs, electrodes, membrane. but it was failed to buinding.

error mesages are "Failed to create swept mesh for domain.", "Source and destination faces must be specified."

then, how can i build mesh for this structure? could you recommand step of building mesh?

thanks


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