15.3.1. System Level Equations

Try these first

1. 1.

   What is a control volume in fluid mechanics?

   Hint

   Think about a box in which fluid can move.

2. 2.

   State the Reynolds Transport Theorem in simple terms.

   Hint

   Consider mass transitioning between system and control volume.

3. 3.

   What does the Reynolds Transport Theorem help us with?

   • A. Understanding the physical properties of fluids
   • B. Relating mass transfer between a system and a control volume
   • C. Defining pressure changes in static fluids

   Hint

   Remember the main function of the theorem.

4. 4.

   True or False: A control volume may be stationary in space.

   • True
   • False

   Hint

   Think of a control volume that doesn't change its position.

5. 5.

   Consider a control volume around a pipe with inflow and outflow parameters known. Explain how one would calculate the mass change over time.

   Hint

   Define the inflows as positive values and outflows as negative.

6. 6.

   Describe a scenario where mass conservation would not hold true and explain why.

   Hint

   Consider processes where mass is altered or not accounted for.