[zizou1]

Hello!
I wrote a parabolic inlet profile for a pipe in cylindrical coordinates with codedFixedValue: i really don't know why but the result at the inlet seems to be like a sinusoidal.
This is U:

dimensions [0 1 -1 0 0 0 0];

internalField uniform (0 0 0);

boundaryField
{


inlet
{
type codedFixedValue;
value $internalField;
redirectType velocityProfile;

code
#{
scalar nu=0.86;
scalar dp=-20;
scalar r1=0.494974746830583;

fixedValueFvPatchVectorField myPatch(*this);
forAll(this->patch().Cf(),i)
{
myPatch[i]=vector(0,0,((-1/nu)*(dp)*(((r1*r1)-((Foam:ow(this->patch().Cf()[i].x(), 2)) + (Foam:ow(this->patch().Cf()[i].y(), 2)))) )) );
}
operator==(myPatch);
#};

}

outlet
{
type zeroGradient;

}

"(walls|bfV_zone0)"
{
type fixedValue;
value uniform (0 0 0);
}
}

Can anyone help me with this?
I attach an image of the inlet in paraview.
Thanks