So I've done a mesh sensitivity study for a rotating wheel. Dimensions of the wheel are 630mm diameter and 289 mm width, and the radius on the edges of the wheel is 31.5mm. It is sunk into the ground plane by 20mm. It is therefore a bit smaller than a F1 tyre but the car is designed around those wheel dimensions so I'm not going to change them.
I've included mesh scenes (Y+ is between 25 and 75 for nearly all of the wheel), a contour plot showing the flow around the wheel (trailing region of the wheel looks like an angry octopus
), isosurface plots with Q criterion (10000 /s^2) which show the two vortices forming from the edges of the wheel, and a vector plot showing showing the wake of the wheel (20 cm from the wheel).
Drag of the wheel 222 N and lift is 227 N.
Hopefully, I'll be able to put the wing and wheel together later on this week or next week which will show the true colours of the wing to a large enough extent.