tmp< fvVectorMatrix > tUEqn(fvm::ddt(rho, U)+fvm::div(phi, U)+MRF.DDt(rho, U)+turbulence->divDevRhoReff(U)==fvOptions(rho, U))
volScalarField H(IOobject("H", runTime.timeName(), mesh.thisDb(), IOobject::NO_READ, IOobject::AUTO_WRITE), mesh, dimensionedScalar(dimLength, Zero))