Question

A pipe 25cm in diamater and comlong conveys
watere at a velocity of 3.0 m/s, pind the head lost
a due to friction by en meng is Daney relation
and ils chezy by using formula for which
take kinematie viscosity op watereY= 0.0] stoke ​

Answer 1

Here, diameter of the tap,

D=1.25cm=1.25×10

−2

m

Density of water, ρ=10

3

kgm

−3

Coefficient of viscosity,η=10

−3

Pas

Volume of water flowing out per second is

Q=3Lpermin=

60s

3×10

−3

m

3

=5×10

−5

m

3

s

−1

Reynolds number is given by:

R

e

=

πDη

4ρQ

=

3.14×1.25×10

−2

m×10

−3

Pas

4×10

3

kgm

−3

×5×10

−5

m

3

s

−1

=5095>2000

Thus, the flow will be turbulent.

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