WorksheetsRenold number
Total questions: 3
Worksheet time: 3mins
Name
Class
Date
1.
Laminar flow is smooth and (a) , while turbulent flow is rough and mixed.
2.
Water flows through a smooth circular tube. Given ρ = 1000 kg/m³, v = 2 m/s, D = 0.1 m, and μ = 0.25 Pa·s, calculate the Reynolds number and decide if the flow is laminar, transitional, or turbulent.
a)
The Reynolds number is 80, laminar.
b)
The Reynolds number is 800, laminar.
c)
The Reynolds number is 8000, turbulent.
3.
Look at the image. If the animal can be thought of as a fluid, which statement is correct?
a)
The small fish has a higher Reynolds number than the dolphin.
b)
The man in oil has a lower Reynolds number than the man in water.
c)
The bacterium in water is turbulent flow, and the eagle in the air is laminar flow.
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