[maysmech]

Hi all,
Three questions about B.C:

1-What does it mean? (in bouyantPimpleFoam):

    outlet          
    ground
    {
        type            buoyantPressure;
        rho             rhok;
        value           uniform 0;
    }

2- what does it mean? (in pisoFoam):

    outlet          
    {
        type            inletOutlet;
        inletValue      uniform (0 0 0);
        value           uniform (0 0 0);
    }

3- As you know we need to define only one of P and U in boundaries but we must define something in OF for all parameters. so if we define pressure for example as fixed value what should be defined for U?

Thanks in advances,

[sabin.ceuca]

Hi maysmech,
according to the userguide is the BC "inletoutlet" and I quote >>
Switches U and p between fixedValue and zeroGradient depending on direction of U inletValue, value. << I hope this helps you somehow
For the "buoyant" BC i really don't know how it works..
Greats

[maysmech]

Thanks for your reply,
i don't know which B.C type should be used for U, when we set pressure as fixedValue and U is not fully developed to use zeroGradient.
Best,