Im doing a multiphase simulation and I’m a little baffled to what PCORR?
and in my solver log I have:
GAMG: Solving for pcorr, Initial residual = 1, Final residual = 0.000997109777294, No Iterations 31
GAMG: Solving for pcorr, Initial residual = 0.414062071895, Final residual = 0.000405436755087, No Iterations 66
yet my residual plot, plots 1? is this odd or just me misunderstanding what PCORR is?
it is not odd. pcorr is only a pressure correction term due to e.g. mesh movement. That is the reason the residual plot is at 1 (initial residual). Monitoring pcorr convergence is not related to overall convergence behavior of the simulation.
It is solved twice, because you have two non-orthogonal corrections in your solver (see properties under numerics).