1.2. Classification of laminar and turbulent flow

Try these first

1. 1.

   What is the defining characteristic of laminar flow regarding Reynolds number?

   Hint

   Recall the critical values we discussed.

2. 2.

   What happens when the Reynolds number exceeds 4000?

   Hint

   Consider how flow patterns change with different Reynolds numbers.

3. 3.

   What is the defining Reynolds number for turbulent flow?

   • 1000
   • 2100
   • 4000
   • 5000

   Hint

   Remember the thresholds we discussed.

4. 4.

   True or False: Laminar flow occurs at Reynolds numbers above 4000.

   • True
   • False

   Hint

   Think about the flow classification standards.

5. 5.

   A pipe has a diameter of 2 cm, carrying a fluid with a density of 800 kg/m³. If the dynamic viscosity is 0.5 Ns/m², calculate the Reynolds number and classify the flow.

   Hint

   Follow the Reynolds number formula step by step.

6. 6.

   Describe how the flow pattern changes as velocity increases in a given pipe and how this relates to the application of the Reynolds number.

   Hint

   Think about the physical challenges faced in pipe design that change at different flow types.