3.2. Pressure Drop Calculation for Turbulent Flow

Try these first

1. 1.

   Define Friction Factor.

   Hint

   Think about how it impacts flow in pipes.

2. 2.

   What does Reynolds Number indicate?

   Hint

   Consider the nature of fluid flow.

3. 3.

   What is the main purpose of the Darcy-Weisbach equation?

   • To calculate flow rate
   • To find pressure drop
   • To determine viscosity

   Hint

   Think about where the equation applies.

4. 4.

   True or False: The Colebrook equation is explicit in nature.

   • True
   • False

   Hint

   Consider how the equation is set up.

5. 5.

   A 100m long pipe with a roughness of 0.02mm carries water. After refurbishment, its roughness is reduced to 0.005mm. Calculate the change in head loss if the flow rate is constant.

   Hint

   Consider both friction factors based on the new roughness.

6. 6.

   For a 2m diameter pipe, if the flow is turbulent with Re around 100,000, how would adjusting the diameter affect the pressure drop?

   Hint

   Reflect on the relationship between D, V, and Re.