[masb]

Hi,



I'm trying to implement a new boundary condition for 1D-baffles using codeStream.
The BC should read the neighbor cells of an internal 1D-baffle and verify if the temperature at the left-hand side is greater than the temperature at the right-hand side.
If yes, the baffle's temperature should be set equal to the temperature at the neighbor cells.
If not, the BC should not work.

I'm trying to induce a unidirectional conductive heat flow for a Laplacian solver.
I could already start the programming but I don't know how to go further. How can I read the temperature from the neighbor cells?


Is it possible to set the heat flux equal to zero?


Thanks in advance!

Marco.





plate
{
type fixedValue;
value #codeStream
{
codeInclude
#{
#include "fvCFD.H"
#include "faceList.H"
#};

codeOptions
#{
-I$(LIB_SRC)/finiteVolume/lnInclude \
-I$(LIB_SRC)/meshTools/lnInclude
#};

//libs needed to visualize BC in paraview
codeLibs
#{
-lmeshTools \
-lfiniteVolume
#};

code
#{
const IOdictionary& d = static_cast<const IOdictionary&>
(
dict.parent().parent()
);
const fvMesh& mesh = refCast<const fvMesh>(d.db());
const label id = mesh.boundary().findPatchID("plate");
const fvPatch& patch = mesh.boundary()[id];

scalarField T(patch.size(), scalar(273));

forAll(T, i)
{
T[i] = scalar(777);
}

T.writeEntry("", os);
#};
};
}