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Old   January 16, 2016, 08:21
Default Error with freestream BC
  #1
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Hi,

i want to model an aerated tank with a degassing outlet. I read in the forum that this can be achieved by using the freestream BC, however if i specify in U.air the outlet patch as :

outlet
{
type freestream;
}

i get the error message "keyword freestreamValue is undefined in dictionary /xxx/0/U.air.boundaryField.outlet" when using twoPhaseEulerFoam solver.

What does this mean? I'm using OF 3.0.1.

Thanks a lot!
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Old   April 19, 2016, 15:33
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Bumping this, I'm running into a similar error. It looks like there was a variable change from 2.X->3.0 but I'm not sure what the correction is

edit: Passing it both freestreamValue and value worked. This is my nut file but U is similar.

Code:
boundaryField
{
    airfoil
    {
        type            fixedValue;
        value            uniform 0.014;
    }
    frontback
    {
        type            empty;
    }
    inlet
    {
        type            freestream;
        freestreamValue    uniform 0.014;
        value           uniform 0.014;

    }
    outlet
    {
        type            freestream;
        freestreamValue    uniform 0.014;
        value    uniform 0.014;
    }
    topbottom
    {
        type            freestream;
        freestreamValue    uniform 0.014;
        value             uniform 0.014;
    }
}
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Old   April 21, 2016, 10:11
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Jigar Parekh
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Hi ss32,

I am also trying degassing outlet. Can simply use Slip BC for the liquid and pressureInletOutletVelocity BC for the gas at the degassing patch?
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