The Reynolds number for a water flow at u = 1 m/s in an L = 0.25 m pipe is: 191,074.
To find this result:
Find the density of water at 10°:
ρ = 999.7 kg/m³ .
Find the dynamic viscosity:
µ = 0.001308 kg/(m · s).
Compute the product of the density of water, the velocity of the flow, and L:
ρ × u × L = 249.925 (m · s)/kg.
Divide the result by the dynamic viscosity to find the Reynolds number: ReD = 249.925/0.001308 = 191,074 The flow is likely turbulent.
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