volScalarField rho ( IOobject ( "rho", runTime.timeName(), mesh, IOobject::NO_READ, IOobject::AUTO_WRITE ), thermo.rho() ); rho.oldTime(); Info<< "\nReading field U\n" << endl; volVectorField U ( IOobject ( "U", runTime.timeName(), mesh, IOobject::MUST_READ, IOobject::AUTO_WRITE ), mesh ); # include "compressibleCreatePhi.H" Info<< "Creating turbulence model\n" << endl; autoPtr turbulence ( compressible::RASModel::New ( rho, U, phi, thermo ) );