I am trying to solve a problem, where I have a closed hollow cylinder filled with fluid. The curved surfaces of the cylinder rotate at a speed of 1m/s.

This is my U file. Is the code correct?

internalField uniform (0 0 0);

boundaryField
{
movingWall1
{
type codedFixedValue;
value uniform (1 0 0);

name tangVelocity;
code
#{
const vectorField& Cf =patch().Cf();
vectorField& field = *this;

const scalar r = 1;

forAll(Cf, faceI)
{
const scalar x=Cf[faceI][0];
const scalar y=Cf[faceI][1];
field[faceI]=vector(y/r,-x/r,0);
}
#};
}
movingWall2
{
type codedFixedValue;
value uniform (0 1 0);

name tangVelocity;
code
#{
const vectorField& Cf =patch().Cf();
vectorField& field = *this;

const scalar r = 1;

forAll(Cf, faceI)
{
const scalar x=Cf[faceI][0];
const scalar y=Cf[faceI][1];
field[faceI]=vector(y/r,-x/r,0);
}
#};
}
movingWall3
{
type codedFixedValue;
value uniform (1 0 0);

name tangVelocity;
code
#{
const vectorField& Cf =patch().Cf();
vectorField& field = *this;

const scalar r = 1;

forAll(Cf, faceI)
{
const scalar x=Cf[faceI][0];
const scalar y=Cf[faceI][1];
field[faceI]=vector(y/r,-x/r,0);
}
#};
}
movingWall4
{
type codedFixedValue;
value uniform (0 1 0);

name tangVelocity;
code
#{
const vectorField& Cf =patch().Cf();
vectorField& field = *this;

const scalar r = 1;

forAll(Cf, faceI)
{
const scalar x=Cf[faceI][0];
const scalar y=Cf[faceI][1];
field[faceI]=vector(y/r,-x/r,0);
}
#};
}
fixedWalls
{
type noSlip;
}

frontAndBack
{
type empty;
}
}

// ************************************************************************* //