1.2. Problem on Laminar Flow between Two Plates

Try these first

1. 1.

   Define laminar flow.

   Hint

   Think about how fluid behaves without disruption.

2. 2.

   What is viscosity?

   Hint

   Consider how thick a liquid is.

3. 3.

   What happens to the velocity profile in laminar flow as the gap between plates decreases?

   • Velocity increases
   • Velocity decreases
   • Velocity remains constant

   Hint

   Think about how flow speeds up in constricted paths.

4. 4.

   True or False: Shear stress is dependent on the viscosity of the fluid.

   • True
   • False

   Hint

   Recall the relationship between shear stress and viscosity.

5. 5.

   Calculate the shear stress at the wall if the maximum velocity is 0.8 m/s and the viscosity is 0.01 Pa·s.

   Hint

   Review the relationship between velocity and shear stress.

6. 6.

   In a laminar flow scenario, if the distance between plates is halved, what happens to the maximum velocity?

   Hint

   Consider how the geometry affects flow and apply known equations.