1.1. Laminar and Turbulent Flow (Contnd.)

Try these first

1. 1.

   What is the definition of laminar flow?

   Hint

   Think about how water flows smoothly without turbulence.

2. 2.

   What does the Reynolds number indicate?

   Hint

   Remember the numerical threshold for flow classification.

3. 3.

   What is the characteristic of laminar flow?

   • Disordered flow
   • Streamlined flow
   • Chaotic flow

   Hint

   Think about how well-ordered or chaotic the flow appears.

4. 4.

   True or False: A Reynolds number greater than 2000 indicates laminar flow.

   • True
   • False

   Hint

   Remember the threshold number associated with laminar flow.

5. 5.

   If a liquid has a viscosity of 1.2 poise, flows through a pipe of diameter 0.05 m, and the length is 3 m with a flow rate of 0.01 m³/s, calculate the pressure drop.

   Hint

   Consider the required units and relationships between variables.

6. 6.

   Determine the average velocity and pressure gradient in a flow between two parallel plates with viscosity 0.8 poise, thickness 0.1 m, and u_max of 1.5 m/s.

   Hint

   Make sure to use the correct flow boundary conditions.