faceAgglomerate assumes viewFactorsDict entries are all patch names

Functionality to add/problem to solve

The faceAgglomerate app reads the viewFactorsDict (as does the viewFactorsGen app) . It iterates through the entries and checks if any are patch names. This gives big weirdness if e.g. a patch has the same name as one of the settings needed by viewFactorsGen.

Target audience

Users of view factor radiation.

Proposal

Put the patch information in viewFactorsDict in a sub dictionary:

writeViewFactorMatrix     true;
writeFacesAgglomeration   true;
writePatchViewFactors     false;

//- Debug option
debug                     1;

//- Dump connectivity rays
dumpRays                  false;

//- Optional per-patch agglomeration if faceAgglomerate is used
patchAgglomeration
{
    ".*" 
    {
        nFacesInCoarsestLevel 100; // increase to get more radiation patches (coarse faces)
        featureAngle           30; // 0: one radiation patch (coarse face) over one cell face
    }
}

//- Maximum length for dynamicList. See /applications/utilities/preProcessing/viewFactorsGen/shootRays.H
maxDynListLength        1000000000;

What does success look like, and how can we measure that?

• be backwards compatible
• use the patchAgglomeration subdictionary if it is there