FLUID MECHANIC
Analysis of Flow In Pipe
Minor Losses Exercise
A horizontal pipe has an abrupt expansion from D1= 8cm to D2= 16cm. the water velocity in the smaller section is 10m/s and the flow is turbulent. The pressure in the smaller section is P1= 300kPa. Taking the kinetic energy correction factor to be 1.06 at both the inlet and outlet, determine the downstream pressure P2, and estimate the error that would have occurred if Bernoulli’s equation had been used.
FRICTION IN NONCIRCULAR AND CIRCULAR CONDUITS
Water at 15°C is drained from a large reservoir using two horizontal plastic pipes connected in series. The first pipe is 20 m long and has a 10-cm diameter, while the second pipe is 35 m long and has a 4-cm diameter. The water level in the reservoir is 18 m above the centerline of the pipe. The pipe entrance is sharp-edged, and the contraction between the two pipes is sudden. Neglecting the effect of the kinetic energy correction factor, determine the discharge rate of water from the reservoir.
