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Bug extracting field in parallel simulation?

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Old   September 20, 2017, 11:17
Default Bug extracting field in parallel simulation?
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Hello to all,
i'm simulating in parallel a flow in a rectangular cross section channel. I have to extract the outlet velocity profile and use it as inlet condition in another simulation. Unfortunately, when i pass the velocity profile, somethig worng happens in the reconstruction of the mesh, because the two profile are different.
Here the passages of my simulation

Code:
blockMesh
decomposePar -force
mpirun -np 30 pimpleFoam -parallel
reconstructPar -latestTime
here how i extract the profile in the controlDict

Code:
functions
{
	surfaceSampling
	{

 		type surfaces;

		functionObjectLibs ("libsampling.so");
		enabled         true;
		outputControl   onEnd;
		interpolationScheme cellPointFace; 

		surfaceFormat    foam;  

		fields
 		(
  			U
		);

		surfaces
		(
			outlet
			{
				type patch;
				patches	("outlet");
				interpolate     false;    
				triangulate     false;
			}
		);
	}
}
then i include the file created, after formattin it, in the second simulation but the two profiles look different. Something wrong happens because the velocity vectors are not ordered in the correct manner even if the same vectors are present.
Any idea to solve this problem?
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