[badreddine0]

Hello Everyone !!


I am coming to you because I need a little help to run a simulation on Openfoam. I am still new, so the question may seem silly.


I want to run a simulation of a laminar flow in a circular pipe. But, I have an error message for the pressure boundary condition. I can not impose a fixed value for the pressure for any boundary.


Here is the error message:
"
gradientInternalCoeffs cannot be called for a genericFvPatchField (actual type fixedvalue) on patch walls of field p in file "/root/localfolder/pipe/0/p" You are probably trying to solve for a field with a generic boundary condition.

From function genericFvPatchField<Type>::gradientInternalCoeffs( ) const in file fields/fvPatchFields/basic/generic/genericFvPatchField.C at line 811.

"
I obtain exactly the same error for any boundary.


Here is my 0/p file:

 

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

internalField   uniform 0;

boundaryField
{
    inlet
    {
        type            fixedvalue; 
        value           uniform 15;
    }

    outlet
    {
        type            fixedvalue;
        value           uniform 0;
    }

    walls
    {
        type            zeroGradient;
    }

    side1
    {
        type            wedge;
    }

    side2
    {
        type            wedge;
    }
}

Can you help to understand the problem ?


Thank you for helps,


Best regards,

[Rvadrabade]

Probably, the velocity boundary condition may not be correctly set with respect to pressure one. If possible can you share the U file boundary conditions.

[badreddine0]

You are right, there was a mistake in 0/U. Thanks you