18.2.1. Pipe Roughness and Behavior

Try these first

1. 1.

   What is pipe roughness?

   Hint

   Think about the physical characteristics of a pipe.

2. 2.

   Why is head loss important?

   Hint

   Consider how energy is used or lost in a flow system.

3. 3.

   What does a higher roughness in pipes typically cause?

   • A decrease in energy loss
   • An increase in energy loss
   • No change in energy loss

   Hint

   Think about the impact of surface texture.

4. 4.

   True or False: The Reynolds number is a measure of flow efficiency.

   • True
   • False

   Hint

   Consider the definitions and effects on flow behavior.

5. 5.

   Given a pipe with a diameter of 0.1m and a roughness height of 0.0002m, calculate whether the flow would be considered laminar or turbulent at a velocity of 2m/s. Show all calculations.

   Hint

   Make sure to use consistent units.

6. 6.

   Research and compare the friction factors for three different pipe materials: PVC, concrete, and steel. Discuss how this affects energy loss in practical applications.

   Hint

   Reflect on applications in plumbing versus heavy industry.