Question

Problem (3) 140 pointsl Consider a viscous film of liquid draining uniformly down the side of a vertical rod or radius (a) and length of (L), as shown in figure. Assume that the atmosphere offers no shear resistance to the film motion and the flow is axi-symmetry. Determine the following a) Show that , ,(r) only. b) Verify o. c) Derive the differential equation for v,, state the boundary conditions and solve for the velocity profile in z-direction. ) Find shear forces at the wall (rr To. ) Film

please solve all parts and show all steps

especially parts b) and d)

Answer 1

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