Q9: A space of 20mm between two parallel plates is filled with castor oil at a temp of 38°C. One of the plates is involving at a speed of 0.25 m/s while the other one is held stationary. Determine the shear stress on the surface of the moving plate in contact with the fluid.

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Author:Erwin Kreyszig
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Q9: A space of 20mm between two parallel plates is filled with castor oil at a temp of 38° C. One of
the plates is involving at a speed of 0.25 m/s while the other one is held stationary. Determine the
shear stress on the surface of the moving plate in contact with the fluid.
Q11: Glycerine is flowing between two parallel plates with a maximum central velocity of 0.6 m/s.
Determine the shear stress at the plate surfaces if a parabolic velocity distribution is assumed.
Transcribed Image Text:Q9: A space of 20mm between two parallel plates is filled with castor oil at a temp of 38° C. One of the plates is involving at a speed of 0.25 m/s while the other one is held stationary. Determine the shear stress on the surface of the moving plate in contact with the fluid. Q11: Glycerine is flowing between two parallel plates with a maximum central velocity of 0.6 m/s. Determine the shear stress at the plate surfaces if a parabolic velocity distribution is assumed.
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