CFD Online Discussion Forums - decomposePar alters boundaries for p

Dear All,

I have run into a serious difficulty with interFoam, decomposePar and totalPressure boundary. I have verified that the setup I have runs all right in serial and now I want to run a mesh refined case. Unfortunately after applying decomposePar the boundary conditions for p_rgh change from totalPressure to buoyantPressure. Is this is an intended behaviour?

I have tried scotch and simple decomposition with the same result. I have tried various number of processors for decomposition.

The problem is that this causes my simulation to break immediately with the following error message:

Code:

FOAM FATAL ERROR: 

  [1] Continuity error cannot be removed by adjusting the outflow.

  Please check the velocity boundary conditions and/or run potentialFoam to initialise the outfl    ow.

  Total flux              : 1.026523172e-09

  Specified mass inflow   : 3.355484345e-11

  Specified mass outflow  : 3.356035588e-11

  Adjustable mass outflow : 0

 [1] 

 [1] 

 [1]     From function adjustPhi(surfaceScalarField& phi, const volVectorField& U,const volScal    arField& p

 [1]     in file cfdTools/general/adjustPhi/adjustPhi.C at line 118.

 [1] 

 FOAM parallel run exiting

and I verified that the message appears if I remove totalPressure bc.

Do you have any suggestions or explanations for this behaviour? I would obliged for any assistance.