Fluctuating sum local error
 

Guys,

I am having this problem where the sum local fluctuates between 10-30 for I have no idea why. I am running rhoPorousMRFSimpleFoam and everything seems to be right but sum local does this. Is there a reason why this happens and what exactly does this mean? If I increase the nNonOrthogonalCorrectors, it fluctuates between 0.1 and 2. After some iterations, when I check the solution, it gives pure rubbish results (negative pressure !!!) . I am quite sure all the initial and boundary conditions are right ( I have a fluent case for same numbers which gave me expected results)

Checkmesh doesnt report any errors. I tried fiddling with the relaxation settings and that doesn't help much. Also, I am running a first order upwind scheme.

Can someone tell me what all of this can mean?

Thanks,
Kalyan

The error has been resolved ..

Even though checkMesh hasn't given me any errors, looks like the mesh is not the best in the world. I had to use 10 nonOrthogonalCorrectors to get it to run and give me correct results.

Kalyan