17.. Fluid Mechanics

Try these first

1. 1.

   What is laminar flow?

   Hint

   Think about how layers of water move.

2. 2.

   What is the Reynolds number used for?

   Hint

   It's a dimensionless quantity.

3. 3.

   What is defined as the ratio of inertial forces to viscous forces?

   • Aerodynamic Force
   • Reynolds Number
   • Friction Factor

   Hint

   Focus on fluid flow characteristics.

4. 4.

   True or False: Laminar flow has a chaotic behavior.

   • True
   • False

   Hint

   Recall the definitions given for each type of flow.

5. 5.

   You have a fluid with a density of 850 kg/m³, flowing with a velocity of 3 m/s through a pipe with a diameter of 0.05 m. If the dynamic viscosity is 0.0009 Pa·s, calculate the Reynolds number and determine the flow type.

   Hint

   Apply the Reynolds number formula carefully.

6. 6.

   A circular pipe experiences turbulent flow. Discuss the implications of head loss in this situation and how it can be minimized in design.

   Hint

   Think about designs that promote smooth flow.