5.5.2. Key Conservation Equations in Fluid Mechanics

Try these first

1. 1.

   Define 'system' in fluid mechanics.

   Hint

   Think of it as the mass or fluid being analyzed.

2. 2.

   What does a control volume refer to?

   Hint

   Remember, it's more about the volume in space.

3. 3.

   What does a control volume represent in fluid mechanics?

   • A fixed mass of fluid
   • A defined space for analysis
   • A dynamic fluid system

   Hint

   Consider the volume aspect.

4. 4.

   True or False: The conservation of momentum states that momentum can be created.

   • True
   • False

   Hint

   Think about conservation principles.

5. 5.

   A cylindrical tank at rest is filled with water. Calculate the pressure at the bottom if the height of the water is 5 meters. Assume the density of water is 1000 kg/m^3.

   Hint

   Use the hydrostatic pressure equation!

6. 6.

   A jet of water striking a flat plate at 30 degrees creates a force. How can you calculate this using conservation principles?

   Hint

   Consider the flow rate and angle of incidence!