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Continuity error cannot be removed by adjusting the outflow. Please check the velocit

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Old   January 20, 2015, 04:17
Default Continuity error cannot be removed by adjusting the outflow. Please check the velocit
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Hey guys

I am very new to openfoam, when i am using icofoam solver i have been facing this continuity error ,i am having an inflow in horizontal and outflow in vertical. i tried my ways to get over it , i am not able to can any body help me on this.

Error:

Continuity error cannot be removed by adjusting the outflow.
Please check the velocity boundary conditions and/or run potentialFoam to initialise the outflow.
Total flux : 376.432
Specified mass inflow : 20
Specified mass outflow : 7220
Adjustable mass outflow : 0


From function adjustPhi(surfaceScalarField&, const volVectorField&,volScalarField&)
in file cfdTools/general/adjustPhi/adjustPhi.C at line 118.

FOAM exiting

P-file

dimensions [0 2 -2 0 0 0 0];

internalField uniform 0;

boundaryField
{
inlet
{
type zeroGradient;
}

outlet
{

type zeroGradient;
}

walls
{
type zeroGradient;
}
}


U-file

dimensions [0 1 -1 0 0 0 0];

internalField uniform (0 0 0);

boundaryField
{
inlet
{
type fixedValue;
value uniform (10 0 0);
}

outlet
{
type fixedValue;
value uniform (0 0 20);

}

walls
{
type fixedValue;
value uniform (0 0 0);
}
}
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Old   January 20, 2015, 04:36
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Alexey Matveichev
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Hi,

It looks like area of the outlet is around 180 time greater than area of the inlet. Can you post screenshot of your mesh?
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Old   January 20, 2015, 04:41
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Yeah, you are true

I just figured it out, i adjusted my boundary conditions and it worked fine

thanks for your reply
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