A 90° elbow in a horizontal pipe is used to direct water flow upward at a rate of 41 kg/s. Another identical elbow is attached to the existing elbow such that the water flow makes a U-turn as shown in the second figure. The diameter of the entire elbow is 10 cm. The elbow discharges water into the atmosphere, and thus the pressure at the exit is the local atmospheric pressure. The elevation difference between the centers of the exit and the inlet of the elbow is 50 cm. The weight of the elbow and the water in it is considered to be negligible. Take the momentum-flux correction factor to be 1.03 at both the inlet and the outlet. Take the density of water to be 1000 kg/m³. Water m kg/s L Water 2 1 FR₂ 50 cm 50 cm f another (identical) elbow is attached to the existing elbow so that the fluid makes a U-turn, determine the gage pressure at the center of the inlet of the elbow. The gage pressure at the center of the inlet of the elbow is kPa.
A 90° elbow in a horizontal pipe is used to direct water flow upward at a rate of 41 kg/s. Another identical elbow is attached to the existing elbow such that the water flow makes a U-turn as shown in the second figure. The diameter of the entire elbow is 10 cm. The elbow discharges water into the atmosphere, and thus the pressure at the exit is the local atmospheric pressure. The elevation difference between the centers of the exit and the inlet of the elbow is 50 cm. The weight of the elbow and the water in it is considered to be negligible. Take the momentum-flux correction factor to be 1.03 at both the inlet and the outlet. Take the density of water to be 1000 kg/m³. Water m kg/s L Water 2 1 FR₂ 50 cm 50 cm f another (identical) elbow is attached to the existing elbow so that the fluid makes a U-turn, determine the gage pressure at the center of the inlet of the elbow. The gage pressure at the center of the inlet of the elbow is kPa.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 90° elbow in a horizontal pipe is used to direct water flow upward at a rate of 41 kg/s. Another identical elbow is
attached to the existing elbow such that the water flow makes a U-turn as shown in the second figure. The diameter of the
entire elbow is 10 cm. The elbow discharges water into the atmosphere, and thus the pressure at the exit is the local
atmospheric pressure. The elevation difference between the centers of the exit and the inlet of the elbow is 50 cm. The
weight of the elbow and the water in it is considered to be negligible. Take the momentum-flux correction factor to be 1.03
at both the inlet and the outlet. Take the density of water to be 1000 kg/m³.
Water
m kg/s
L.
X
Water
FR₂
50 cm
FRX
50 cm
If another (identical) elbow is attached to the existing elbow so that the fluid makes a U-turn, determine the gage pressure at the
center of the inlet of the elbow.
The gage pressure at the center of the inlet of the elbow is
kPa.
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