{ scalar limitMagU = readScalar(pimple.dict().lookup("limitMagU")); volScalarField magU(mag(U)); scalar maxMagU = max(magU).value(); Info<< "mag(U): max: " << maxMagU << " avg: " << magU.weightedAverage(mesh.V()).value(); if (maxMagU > limitMagU) { U.internalField() *= neg(magU.internalField() - limitMagU) + pos(magU.internalField() - limitMagU)* limitMagU/(magU.internalField() + SMALL); U.correctBoundaryConditions(); Info << " ...limiting" << endl; } else { Info << endl; } }