5. Fluid Mechanics

Try these first

1. 1.

   What is a system in fluid mechanics?

   Hint

   Think about how it is different from control volume.

2. 2.

   Define what a streamline is.

   Hint

   It is connected to the velocity vector.

3. 3.

   What defines a 'control volume' in fluid mechanics?

   • A fixed quantity of fluid
   • A defined space with fluid flow
   • An area with no fluid movement

   Hint

   Think about how fluid interacts with boundaries.

4. 4.

   True or False: Streamlines can intersect each other.

   • True
   • False

   Hint

   Consider the definition of a streamline.

5. 5.

   A cylindrical tank has a diameter of 2m and is filled with water. Water is flowing out through a small hole at the bottom. Explain how you would set up a control volume to analyze the changes in water level over time. Include equations for mass flow rate.

   Hint

   Focus on how the incoming flow differs from the outgoing flow.

6. 6.

   You need to analyze the aerodynamic forces on a scaled model of a car using a wind tunnel. Describe the steps you would take, and the data you would collect.

   Hint

   Think about both the physical model and the data you need for your analysis.