pointMotionUx code
 

Hello guys,

FoamFile
{
version 2.0;
format ascii;
class pointScalarField;
object pointMotionU;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [0 1 -1 0 0 0 0];

internalField uniform 0;

boundaryField
{
flapper
{
type uniformFixedValue;
outOfBounds 10;
}

outlet
{
type slip;
}

inlet
{
type slip;
}

bottom
{
type slip;
}

atmosphere
{
type slip;
}

frontBack
{
type empty;
}

}

now I'm looking at a case of flap type wavemaker.
In pointMotionU file, what does slip condition mean physically and
what OutofBounds 10; do??

Thank you