16.. Fluid Mechanics

Try these first

1. 1.

   What flows are considered in open channel flow?

   Hint

   Think about water bodies like rivers and canals.

2. 2.

   Define specific energy.

   Hint

   Consider how energy impacts flow characteristics.

3. 3.

   What indicates a supercritical flow regime?

   • Froude number < 1
   • Froude number = 1
   • Froude number > 1

   Hint

   Remember the definition of subcritical and supercritical flow.

4. 4.

   True or False: Specific energy is only relevant for closed channel flow.

   • True
   • False

   Hint

   Consider where the concept applies.

5. 5.

   A river has a flow depth of 3m and a velocity of 5m/s. Calculate the specific energy, and analyze its regime using the Froude number.

   Hint

   Remember to apply the specific energy formula.

6. 6.

   Design a trapezoidal channel for a flow rate of 20m³/s with a slope of 1:2. Calculate the best cross-section parameters.

   Hint

   Consider the relationship between slope and cross-sectional area.