Determine: The volume per second The velocity at each section The pressure at the lower end
A pipe 100mm bore carries oil of density 900 kg/m3 at a rate of 4 kg/s. the
pipe reduces to 60mm bore and rises 120m. the pressure at this point is
atmospheric (zero gauge) assume no frictional losses.
Determine:
The volume per second
The velocity at each section
The pressure at the lower end
The above pipe is exchanged for a parallel pipe with a cross sectional area of 0.3
m2 and is 20 m long, with a surface roughness coefficient of 0.005. The dynamic
viscosity of the water is 1.002 x 10-3 Ns/m. Find the Reynold’s number of the flow
and use Haarland’s formula to find the friction coefficient and Darcy’s formula to
determine the frictional pressure loss. Then determine the pressure at the outlet of
the pipe.
What does the magnitude of the Reynolds number mean to fluid flow
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The above pipe is exchanged for a parallel pipe with a cross sectional area of 0.3
m2 and is 20 m long, with a surface roughness coefficient of 0.005. The dynamic
viscosity of the water is 1.002 x 10-3 Ns/m. Find the Reynold’s number of the flow
and use Haarland’s formula to find the friction coefficient and Darcy’s formula to
determine the frictional pressure loss. Then determine the pressure at the outlet of
the pipe.
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