openfoam/applications/solvers/heatTransfer/chtMultiRegionFoam/solid/readSolidMultiRegionPIMPLEControls.H

const dictionary& pimple =
    mesh.solution().solutionDict("PIMPLE");

int nNonOrthCorr =
    pimple.getOrDefault<int>("nNonOrthogonalCorrectors", 0);