4.2. Energy Equation

Try these first

1. 1.

   Define the term 'Specific Energy'.

   Hint

   Look at the definition we discussed in class regarding energy equations.

2. 2.

   What does the continuity equation represent?

   Hint

   Think about how mass flow must stay constant in a flow system.

3. 3.

   What does the energy equation in fluid dynamics primarily relate?

   • Kinetic and potential energy
   • Pressure only
   • Friction only

   Hint

   Consider all forms of energy affecting fluid flow.

4. 4.

   True or False: The continuity equation states that mass flow rate can change throughout a fluid system.

   • True
   • False

   Hint

   Remember the principle of conservation in fluid dynamics.

5. 5.

   Given an upstream depth of 1.5m and flow rate of 3.0 m^3/s in a rectangular channel, find the downstream depth when the channel rises by 0.5m.

   Hint

   Consider how the channel slope impacts energy loss while applying the equations.

6. 6.

   Design a small channel that minimizes energy loss while maintaining a uniform flow rate of 5 m^3/s. Discuss the parameters you would consider in your design.

   Hint

   Focus on striving for balance in energy efficiency while considering the flow characteristics.