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What should be the average velocity of a...

What should be the average velocity of a water in a tube of radius 0.005m, so that the flow is just turbulent? The viscosity of water is 0.001 Pa-s.

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To find the average velocity of water in a tube of radius 0.005 m, such that the flow is just turbulent, we will use the Reynolds number (R) formula. The critical Reynolds number for the transition from laminar to turbulent flow is approximately 3000. ### Step-by-Step Solution: 1. **Identify the Given Values:** - Radius of the tube (r) = 0.005 m - Viscosity of water (μ) = 0.001 Pa·s - Density of water (ρ) = 1000 kg/m³ (approximately) ...
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What should be the average velocity of water in a tube of radius 2.5 mm so that the flow is just turbulent? Viscosity of water is 0.001 Pa s. Hint : For flow to be just turbulent R_(e) = 2000

The following observations were made in an experiment noith Poiseuille's apparatus: Calculate the average velocity of water in a tube of radius 0.05 cm so that the flow is turbulent. Take, viscosity of water = 0.001 Pa s.

Knowledge Check

  • The maximum average velocity of water in a tube of diameter 2 cm so that the flow becomes laminer is [Viscosity of water is 10^(-3)N m^(-2)s^(-1)]

    A
    `1m s^(-1)`
    B
    `0.1 ms^(-1)`
    C
    `10 ms^(-1)`
    D
    `100 ms^(-1)`

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