[joshmccraney]

Hi everyone

I am running OpenFOAM 6, interFoam. I am trying to have an atmospheric boundary condition on the roof (like the dambreak tutorial) of the attached image. Gas is blue, liquid is red. As you can see, liquid is wicking into the roof corners (this is a very small geometry, so water overcomes gravity and does this). But I want the roof to be atmospheric, which is why I have set the 0 directory as shown

alpha.water.orig

internalField   uniform 0;//initially air in the entire domain - we will change that with setFields!

boundaryField
{

    tank
    {
        type            constantAlphaContactAngle;
	theta0		0;
	limit		gradient;
	value		uniform 0;
    }

    roof
    {
//    This boundary condition provides a generic outflow condition, with
//    specified inflow for the case of return flow.
//    The mode of operation is determined by the sign of the flux across the
//    patch faces.
        type            inletOutlet;
        inletValue      uniform 0;
        value           uniform 0;
    }

    outlet
    {
        type            inletOutlet;
        inletValue      uniform 1;
        value           uniform 1;
    }

    inlet
    {
        type            fixedValue;
        value           uniform 1;//only liquid enters the domain
    }

    symm_side
    {
        type            symmetry;
    }
}

p_rgh:

boundaryField
{

    tank
    {
        type            fixedFluxPressure;
        value           uniform 0;
    }

    roof
    {
        type            totalPressure;
        p0              uniform 0;
    }

    outlet
    {
        type            totalPressure;
        p0              uniform 0;
	//type		fixedValue;
	//value		uniform 0;
    }

    inlet
    {
        type            fixedFluxPressure;
        value           uniform 0;
    }

    symm_side
    {
        type            symmetry;
    }

}

U:

boundaryField
{

    tank
    {
        type            noSlip;			//no slip along the walls - replaces fixedValue with uniform (0 0 0)
    }

    roof
    {
	type		pressureInletOutletVelocity;
	value		uniform (0 0 0);
    }

    outlet
    {
	type		pressureInletOutletVelocity;
	value		uniform (0 0 0);
    }

  inlet
  {
      type         uniformFixedValue;
      uniformValue    table
      (
           (0   	(0 0 0.0149))
           (10   	(0 0 0.0149))
      );
  }

    symm_side
    {
        type            symmetry;
    }
}

Any help is greatly appreciated!

Nevermind, issue was in my blockMeshDict