7. A thin 10-cm x 20-cm flat plate is Fixed wall pulled at 1.2 m/s horizontally through a 4.6- mm-thick oil layer sandwiched between two plates, one stationary and the other moving at a constant velocity of 0.5 m/s, as shown. The dynamic viscosity of oil is 0.090 Pa.s. Assuming the velocity in each oil layer to vary linearly, (a) plot the velocity profile and find the location where the oil velocity is zero and (b) determine the force F. h, = 2 mm V= 1.2 m/s F h2 = 2.6 mm V, = 0.5 m/s Moving wall
7. A thin 10-cm x 20-cm flat plate is Fixed wall pulled at 1.2 m/s horizontally through a 4.6- mm-thick oil layer sandwiched between two plates, one stationary and the other moving at a constant velocity of 0.5 m/s, as shown. The dynamic viscosity of oil is 0.090 Pa.s. Assuming the velocity in each oil layer to vary linearly, (a) plot the velocity profile and find the location where the oil velocity is zero and (b) determine the force F. h, = 2 mm V= 1.2 m/s F h2 = 2.6 mm V, = 0.5 m/s Moving wall
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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
Transcribed Image Text:7.
A thin 10-cm x 20-cm flat plate is
Fixed wall
pulled at 1.2 m/s horizontally through a 4.6-
mm-thick oil layer sandwiched between two
plates, one stationary and the other moving at
a constant velocity of 0.5 m/s, as shown. The
dynamic viscosity of oil is 0.090 Pa.s.
Assuming the velocity in each oil layer to
vary linearly, (a) plot the velocity profile and
h, = 2 mm
V= 1.2 m/s
F
h2 = 2.6 mm
V = 0.5 m/s
Moving wall
find the location where the oil velocity is zero and (b) determine the force F.
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