FoamFile
{
    version     2.0;
    format      ascii;
    class       volScalarField;
    location    "0";
    object      T;
}
dimensions      [0 0 0 1 0 0 0];
internalField   uniform 0;

boundaryField
{
    inlet    { type fixedValue; value uniform 1; }
    outlet   { type fixedValue; value uniform 0; }
    walls    { type zeroGradient; }
    obstacle { type zeroGradient; }
}