5.3. Momentum Equation

Try these first

1. 1.

   Define specific energy in the context of fluid flow.

   Hint

   Think about what energies are involved in the flow.

2. 2.

   What is the continuity equation?

   Hint

   Consider how the area and velocity relate in flow.

3. 3.

   What is specific energy?

   • Kinetic energy only
   • Potential energy only
   • Sum of potential and kinetic energy

   Hint

   Think about the energies present in flowing fluids.

4. 4.

   Is head loss significant in open channel flow?

   • True
   • False

   Hint

   Consider how friction and turbulence affect energy.

5. 5.

   An open channel has a width of 4 ft and a flow rate of 12 cubic feet per second. Determine the depth and specific energy at this point.

   Hint

   Remember to find depth before calculating energy.

6. 6.

   Explain how varying the channel width affects flow velocity and energy loss.

   Hint

   Consider the relationship between area, width, and flow.