fvPatchSize patchSize(10, 20);
fvPatchSize patchSize(10, 20, 30); int numCells = patchSize.size();
fvPatchSize patchSize(10, 20); int numFaces = patchSize.size() - patchSize.dim();These examples demonstrate how the fvPatch size class can be used to work with patches in an OpenFOAM finite volume simulation. The package library for fvPatch size is OpenFOAM.