[kdarc]

hello.

We are trying to run some code modeled on the conjugate heat transfer example.

It uses the inputs

#include "coupledFvMatrices.H"
#include "regionCouplePolyPatch.H"
#include "coupledFvPatch.H"
and runs on OF3.2-ext

There are "regionCoupling" boundaries that communicate which are
written as, first for the main mesh (region0):

rightWall
{
type regionCoupling;
nFaces 1;
startFace 75;
shadowRegion separator;
shadowPatch leftWall;
attached on;
}

and then in what we call the separator mesh:

leftWall
{
type regionCoupling;
nFaces 1;
startFace 44;
shadowRegion region0;
shadowPatch rightWall;
attached on;
}

and then for the variable BCs in the main mesh :

rightWall
{
type regionCouple;
value uniform 1000.0;
remoteField ce;
}

and in the separator:

leftWall
{
type regionCouple;
value uniform 1000.0;
remoteField ce;
}

It compiles, but then we get the following runtime error:

--> FOAM FATAL ERROR:

gradientInternalCoeffs cannot be called for a genericFvPatchField (actual type regionCouple)
on patch leftWall of field ce in file "./case/0/separator/ce"
You are probably trying to solve for a field with a generic boundary condition.

From function genericFvPatchField<Type>::gradientInternalCoeffs( ) const
in file fields/fvPatchFields/basic/generic/genericFvPatchField.C at line 782.

FOAM exiting

Is this at all familiar to anyone??

We are stuck.
Any ideas on how to correct this error would be most appreciated.

thanks,
Ken