A 90° elbow in a horizontal pipe is used to direct water flow upward at a rate of 47 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 Lox 50 cm DEL Water FR₂ H 1 50 cm

A 90° elbow in a horizontal pipe is used to direct water flow upward at a rate of 47 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 Lox 50 cm DEL Water FR₂ H 1 50 cm

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

A 90° elbow in a horizontal pipe is used to direct water flow upward at a rate of 47 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
Water
2
1
FRI
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 magnitude of anchoring
force needed to hold the elbow in place.
The magnitude of anchoring force needed to hold the elbow in place is 438 * N.

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