Learning Forum

[zackhyjuan]

[Rob]

Internal boundaries are the surfaces between cell zones of the same type (ie they're the surfaces in CAD that transfer to Meshing but don't have a physical presence) or they're the label for the facets that make up the cells in the volume. In most cases you just leave them alone.

[zackhyjuan]

Actually, when I apply water flow, simulation shows me that fluid particles pass through these solid objects which are plate and shaft. I can't fix that

[Rob]

What are those zones set as in the cell conditions?

[zackhyjuan]

Those are set solid in the cell zone condition. Only the part that I made volume extraction in space claim for representing water is set fluid in cell condition.

[Rob]

If they're solid then material shouldn't pass through them. If you're not solving for heat transfer you can also suppress those volumes in SpaceClaim (suppress for physics) and that'll save you cell count.