6. Non-Uniform Flow and Hydraulic Jump (Contd.)

Try these first

1. 1.

   What is the Froude number if the velocity is 3 m/s and depth is 0.5 m?

   Hint

   Use the formula Fr = V / √(g * y).

2. 2.

   Define the term 'head loss' in hydraulic jumps.

   Hint

   Think about the energy changes in the flow system.

3. 3.

   What happens to the Froude number during a hydraulic jump?

   • It decreases
   • It increases
   • It stays the same

   Hint

   Think about how flow changes after the jump.

4. 4.

   True or False: A hydraulic jump only occurs if Fr1 is less than 1.

   • True
   • False

   Hint

   Recall the conditions for jumps.

5. 5.

   Calculate the discharge intensity and Froude number for a rectangular channel having a width of 3 m, carrying a discharge of 5 m³/s at a depth of 0.5 m.

   Hint

   First, compute discharge intensity then find the Froude number.

6. 6.

   Given a downstream depth of 0.75 m, what would be the corresponding upstream depth if Fr1 = 4?

   Hint

   Substitute known variables into the equation for y2/y1.