[The_Kaiser]

Hey,

I wanted to simulate a moving belt (2 parallel sides sliding in different directions. 2 ends rotating) with iddes. OpenFoam 2.3

I get kinda strange results.

my boundary conditions for U:

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

internalField uniform ( 0.05 0. 0. );


boundaryField
{
beltDown
{
type movingWallVelocity;
value uniform (0.05 0. 0.);
}

beltUp
{
type movingWallVelocity;
value uniform (-0.05 0. 0.);
}

inlet
{
type fixedValue;
value uniform (0.05 0. 0.);
}

inlOut_down
{
type inletOutlet;
inletValue uniform (0. 0. 0.);
value uniform (0. 0. 0.);
}

inlOut_up
{
type inletOutlet;
inletValue uniform (0. 0. 0.);
value uniform (0. 0. 0.);
}

outlet
{
type inletOutlet;
inletValue uniform (0. 0. 0.);
value uniform (0. 0. 0.);
}

rotBack
{
type rotatingWallVelocity;
origin (-2.99 0. 0.);
axis (0. 0. 1.);
omega 10;
}

rotFront
{
type rotatingWallVelocity;
origin (0. 0. 0.);
axis (0. 0. 1.);
omega 10;
}

symBack
{
type symmetryPlane;
}

symFront
{
type symmetryPlane;
}


}

The radius of the belt is 5 mm. The speed 0,05 m/s. So omega should be 10 [rad/s], right? But I get results like on the pictures



It doesn't make any sense for me. 30? It isn't even an scalling problem. On both sides the same appears, so the centers of rotation should be ok. The velocity in the field and on other BC is as it should be (U=0.05). What' going on?

Could anybody help me? Even if I scaled it to rps, it stll was 95 times too big.

P.S. Paraview works with meters, right?

[The_Kaiser]

I found the problem. Is it possible to delete the threat? I mixed the BC names...