I have been unable to get the “Periodic” boundary condition type to work in Simscale. When you use periodic BCs, how are you expected to provide the forcing? (Couldn’t find in documentation). In the “Incompressible” simulation type, none of the momentum source options include “pressure gradient” and the “avg. velocity” option doesn’t seem to be implemented.
See the shared project “Cylinder - V1” which is just a “Incompressible” cfd simulation of a straight pipe aligned along the z-axis. It is a single Wall BC (the pipe wall) and a pair of surfaces defining a “Periodic” BC. I set the “average velocity” to Uz=1. …and it produces gibberish. Are there any examples of Public Projects where the Periodic BC was applied successfully in the direction of flow?
Best,
Joe