3 mesh.solution().dict().subDict(
"potentialFlow")
8 potentialFlow.lookupOrDefault<
int>(
"nNonOrthogonalCorrectors", 0)
const int nNonOrthCorr(potentialFlow.lookupOrDefault< int >("nNonOrthogonalCorrectors", 0))
const dictionary & potentialFlow(mesh.solution().dict().subDict("potentialFlow"))