[giack]

Hi to all,I have a problem with an upwind div scheme

I set this scheme:
divSchemes
{
div(rho*phi,U) Gauss linearUpwindV cellLimited Gauss linear 1;
div(phi,alpha) Gauss vanLeer;
div(phirb,alpha) Gauss interfaceCompression;
}

the simulation is good but in my log file there is the following warming message:
--> FOAM Warning :
From function linearUpwindV(const fvMesh&, const surfaceScalarField& faceFlux, Istream&)
in file interpolation/surfaceInterpolation/schemes/linearUpwind/linearUpwindV.H at line 153
Reading "/home/giacomo/Scrivania/20x20x500UP/processor0/../system/fvSchemes::divSchemes::div(rho*phi,U)" at line 30
unexpected additional entries in stream.
Only the name of the gradient scheme in the 'gradSchemes' dictionary should be specified.

It have influence on simulation?
Another question: I would discretize all U terms with an upwind scheme. So i would choose an upwind scheme for the term grad(U) but I obtain an error message and the simulation don't start...How I can set an upwind scheme also for grad(U)

thank to all