[arkanus01]

Hi everyone!

My problem:

I want to change in the solver pisoFoam, the original
equation, for this one:

fvVectorMatrix UEqn
(
fvm::ddt(U)
+ fvm::div(phi, U1)
+ turbulence->divDevReff(U)
);

where U1=2.0*U;

and there is my problem, how I define U1?
U1 is a UList type, but when I declared it, the numbers
are not corresponse.
I'll try to change the file createFields.H like this:

volVectorField U1
(
IOobject
(
"U1",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
U1=2.0*U;

and I add the file U1 in the 0 directory! (U1 copy of U)
but, in the screen, qhen I run it, says U1 is a internald field uniform.
but U is a internald field nonuniform!!!
any suggest¿¿ pliss!!


Sorry for my bad english, I hope you understand!

Bastián!