Question 8.3: Two infinite plates are h distance apart as in Fig. 8.10. Th...

Introduction to Fluid Mechanics and Fluid Machines

Two infinite plates are h distance apart as in Fig. 8.10. There is a fluid of viscosity $\mu$ between the plates and the pressure is constant. The upper plate is moving at speed U = 4 m/s. The height of the channel h = 1.8 cm. Calculate the shear stress at the upper and lower walls if $\mu=0.44 \mathrm{~kg} / \mathrm{m} . \mathrm{s}$ and $\rho=888 \mathrm{~kg} / \mathrm{m}^{3}$ .

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