In problems where all domain interfaces have been set up using the automatic option, the solver may give incorrect results when domain interfaces are close together. This might be especially true for thin solid domains when errors will be obtained in temperature values and energy balance.
There is a limitation of the GGI intersection algorithm when all the domain interfaces are grouped into the same default interface, and the separation distance between the interfaces is very small relative to the mesh size.
Use the expert parameter 'ggi separation factor'.
No fix is currently available.