Calculate the flow rate through the system

Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter7: Seepage
Section: Chapter Questions
Problem 7.1P
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i)Calculate the flow rate through the system.

shows a cross-section through a structure (marked A) that transitions
water from a 2 m wide rectangular channel with flow depth y = 4 m to a pipe with diameter D = 1 m
at B. The friction loss through the transition is described by the equation h₁ = 0.3%, where vg is the
velocity in the pipe at B. A pressure gauge at the bottom of the pipe B gives a reading of 10 kPa.
Assume a hydrostatic pressure distribution between the top and bottom of the pipe at B.
y
A
B
D→
Transcribed Image Text:shows a cross-section through a structure (marked A) that transitions water from a 2 m wide rectangular channel with flow depth y = 4 m to a pipe with diameter D = 1 m at B. The friction loss through the transition is described by the equation h₁ = 0.3%, where vg is the velocity in the pipe at B. A pressure gauge at the bottom of the pipe B gives a reading of 10 kPa. Assume a hydrostatic pressure distribution between the top and bottom of the pipe at B. y A B D→
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