1.10. Average Velocity and Discharge

Try these first

1. 1.

   Define average velocity in the context of fluid flow.

   Hint

   Think about how average speed is measured.

2. 2.

   What is the formula for calculating discharge?

   Hint

   Recall how to find the area of a circle.

3. 3.

   What is the Reynolds number significance?

   • Determines viscosity
   • Determines flow regime
   • Determines discharge

   Hint

   Consider what we discussed about flow types.

4. 4.

   True or False: Average velocity increases with an increase in fluid viscosity.

   • True
   • False

   Hint

   Think about friction and its effect.

5. 5.

   Calculate the discharge for a fluid flowing at a velocity of 2 m/s through a 10 cm diameter pipe, and determine if the flow is laminar.

   Hint

   Don't forget to convert diameter to meters!

6. 6.

   For a fluid with density 1000 kg/m³ and dynamic viscosity 0.001 Pa.s, determine flow types and characteristics if the average velocity is 3 m/s and diameter is 0.1 m.

   Hint

   Focus on viscosity and its role in determining flow type.