Viscous oil flows steadily between parallel plates. The flow is fully developed and laminar. The pressure gradient is 1.25 kPa/m and the channel half-width is h 5 1:5 mm. Calculate the magnitude and...

Viscous oil flows steadily between parallel plates. The

flow is fully developed and laminar. The pressure gradient is

1.25 kPa/m and the channel half-width is h 5 1:5 mm. Calculate the magnitude and direction of the wall shear stress

at the upper plate surface. Find the volume flow rate through

the channel (μ 5 0:50 N s=m2).