1.3. Head Loss in Case of Enlargement

Try these first

1. 1.

   What is the formula to calculate head loss due to sudden enlargement?

   Hint

   Think about the velocity and area relationships.

2. 2.

   Define the term K_L.

   Hint

   What does it relate to regarding area?

3. 3.

   What is the main factor contributing to head loss during sudden enlargement?

   • Turbulence
   • Viscosity
   • Temperature

   Hint

   Consider fluid dynamics around abrupt changes.

4. 4.

   True or False: Gradual enlargement increases head loss compared to sudden enlargement.

   • True
   • False

   Hint

   Think about how transitions are managed in smooth enlargements.

5. 5.

   A pipe has a diameter of 20 cm and suddenly enlarges to 40 cm. If water flows at 3 m/s in the smaller pipe, calculate the head loss due to sudden enlargement.

   Hint

   Focus on calculating the area ratio properly.

6. 6.

   If a gradual enlargement from a smaller pipe to a larger pipe reduces head loss, what factors must a hydraulic engineer consider when designing such a transition?

   Hint

   Think about maintaining flow efficiency and behavior.