[simt]

Using interPhaseChangeFoam I experience sudden increase in forces on my structure when increasing nAlphaCorr above 1 and a decrease in forces when increasing nAlphaSubcycles.

When going from
nAlphaCorr = nAlphaSubCycles = 1 to
nAlphaCorr =2 nAlphaSubCycles = 3
the forces (suddenly) increases by 35%. Only one phase is present and the phaseChange is not initialized. Alpha1 is close to 1 ( [0.9991 1.001])

Has anyone experienced something similar?

[simt]

no one experienced the same issue?

Clarification:
Changing nAlphaCorr and/or nAlphaSubCycles changes (immeditaly) the forces output from the forces functionobject. I suspect it has something to do with the implementation of the forces functionobject.