17.1.1. Laminar and Turbulent Flows

Try these first

1. 1.

   What type of flow is characterized by smooth, parallel layers?

   Hint

   Think about how syrup flows.

2. 2.

   What does a Reynolds number below 2300 indicate?

   Hint

   Remember the threshold for laminar flow.

3. 3.

   Is laminar flow represented by smooth parallel lines?

   • True
   • False

   Hint

   Visualize streamline flow.

4. 4.

   What is the Reynolds number threshold for turbulent flow to begin?

   • < 2300
   • 2300 - 4000
   • > 4000

   Hint

   Recall the transition points.

5. 5.

   Consider a circular pipe with a diameter of 0.15 m, a fluid with a density of 850 kg/m³, and a dynamic viscosity of 0.002 Pa·s. If the average velocity is 1.5 m/s, classify the flow type and justify your answer.

   Hint

   Use the Reynolds number formula.

6. 6.

   Describe how you would experimentally determine if a new fluid shows laminar or turbulent behavior, detailing the setup and procedures.

   Hint

   Consider how flow patterns can indicate the type.