Hello,

I've got some problems with flow simulating my dual fuel cell setup.

No problems when checking the geometry and giving the inlet tube a boundery condition.

But when I press the run button and start calculating, I got the following error:

"It is not possible to calculate the internal task, if there are mass/volume flow openings but no pressure boundary conditions defined"

I'll hope someone can help me solving this problem.

Do you have a pressure BC on an outlet?