A thin horizontal disc of radius R = 10 cm is located within a cylindrical cavity filled with oil whose viscosity n = 0.08 P (Fig. 1.89). The clearance between the disc and the horizontal planes of the cavity is equal to h = 1.0 mm. Find the power developed by the viscous forces acting on the disc when it rotates with the angular velocity w = 60 rad/s. The end effects are to be neglected. |
New search. (Also 5349 free access solutions) |