16.2.1. Specific Energy in Open Channel Flow

Try these first

1. 1.

   What is specific energy in open channel flow?

   Hint

   Think about the components of energy in fluid flow.

2. 2.

   Define Froude number.

   Hint

   It involves velocity and flow depth.

3. 3.

   What is the definition of specific energy?

   Hint

   Consider components of energy in a flowing fluid.

4. 4.

   The Froude number equal to 1 indicates:

   • True
   • False

   Hint

   Think about force balance in flow.

5. 5.

   Design an open channel that ensures the Froude number does not exceed 2 during peak flow. Calculate the dimensions based on given flow characteristics.

   Hint

   Think about how to manipulate flow depth and velocity effectively.

6. 6.

   A sluice gate operation transitions flow from 1 m depth at 5 m/s to new conditions downstream. Calculate the new depth and velocity, assuming critical flow must be maintained.

   Hint

   Focus on specific energy principles and continuity equations.