Question

A thin film of oil (v=0.001 m^2/s) 2mmthick flows down to

a surface inclined at 30 degrees to thehorizontal. What is the
maximum and mean velocity offlow?

Answer 1

Maximum and mean velocity will be equal i.e 0.5 m/s

Step-by-step explanation:

given data:

viscosity = 0.001 m^2/s

Thickness of thin film = 2 mm = 0.002 m

Neglecting the body weight hence no shear stress

Mean velocity is given V

`V = (\\u)/(D)`

`V = (0.001)/(2*10^(-3))`

V = 0.5 m/s

Maximum and mean velocity will be equal i.e 0.5 m/s