Question:
Crude oil of kinematic viscosity 2.25 Stokes flows through a 20 cm diameter pipe. If the rate of flow is 1.5 liters/sec, what will be the type of flow?
Crude oil of kinematic viscosity 2.25 Stokes flows through a 20 cm diameter pipe. If the rate of flow is 1.5 liters/sec, what will be the type of flow?
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Use the Reynolds number to quickly identify flow regimes: laminar, transitional, or turbulent.
Updated On: Jan 17, 2026
- Laminar
- Turbulent
- Transition
- Rotational
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The Correct Option is A
Solution and Explanation
The flow type is determined using the Reynolds number formula:
\( Re = \frac{\rho v D}{\mu} \)
Given \( D = 20 \, \text{cm}, \, v = 1.5 \, \text{L/sec}, \) and kinematic viscosity \( \nu = 2.25 \, \text{Stokes}, \) the calculated Reynolds number is below 2000, indicating laminar flow.
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