[gentodin]

My simulation crashed when some of my cells with alpha = "some value" touches a boundary.

The boundary condition I wanted to set for alpha. steel is inlet-outlet, depicting atmospheric conditions.

However, there are some issues with it.

Please take a look at my boundary conditions for alpha.steel.

FoamFile
{
version 2.0;
format ascii;
class volScalarField;
object alpha.steel;
}
dimensions [0 0 0 0 0 0 0];
internalField uniform 0;
boundaryField
{
topAtmosphere
{
type inletOutlet;
inletValue uniform 0;
value uniform 0;
}
bottomSample
{
type fixedValue;
value uniform 1;
}
leftAndRightAtmosphere
{
type inletOutlet;
inletValue uniform 0;
value uniform 0;
}
leftAndRightSample
{
type fixedValue;
value uniform 1;
}
backSample
{
type fixedValue;
value uniform 1;
}
backAtmosphere
{
type inletOutlet;
inletValue uniform 0;
value uniform 0;
}
symmetryBc
{
type symmetryPlane;
}
}

Attached is the picture for the simulation exploding.