# Movement of compressed air inside a rolling tire?

Does it stay still wrt the axis? Does it rotate along with the tire? Is it drawn away from the center of rotation?

• A agree with this completely, but would add that in the limit as $t\rightarrow\infty$, the air-tire system will be in rigid body rotation, and the curved trajectory of the air particles will demand a radial pressure gradient. Thus, the highest pressures will be near the tire and the lowest pressures will be near the wheel rim. May 26 '14 at 22:51