The rate of water gushing out of a pipe of radius 5 cm is 100 L min - 1 . The Reynolds number for the flow is of the order of [density of water = 1000 kg m - 3 , coefficient of viscosity of water = 1 mPa s ]

Question

The rate of water gushing out of a pipe of radius 5 cm is 100 L min - 1 . The Reynolds number for the flow is of the order of [density of water = 1000 kg m - 3 , coefficient of viscosity of water = 1 mPa s ], 10 6, 10 4, 10 3, 10 2

MARKS App · Accepted Answer

Rate of volume flow = π r 2 V = 100 ℓ /min πr 2 v = 1 600 m 3 / s Reynolds number = R e = ρ ∨ D η = 100 0 . 1 × 1 600 πr 2 × 2 r = 3 . 5 × 10 4

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