The flow is opened to the atmosphere at point D which is fed by a very wide reservoir that hasa water surface elevation of (7+.) meters as shown in the figure given below. Elevation of the 10 horizontal axis BC is 1 meter. At sections AB the diameter of the pipe is (0.4+) meters and CD 100 ab the diameter of the pipe is (0.5+ ) meters. The flow is ideal (inviscid) and absolute 100 atmosphere pressure is 9.81 N/cm2.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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a=7 , b=2

The flow is opened to the atmosphere at point D which is fed by a very wide reservoir that hasa
water surface elevation of (7+)
meters as shown in the tigure given below. Elevation of the
10
horizontal axis BC is 1 meter. At sections AB the diameter of the pipe is (0.4+
) meters and CD
100
the diameter of the pipe is (0.5+ ) meters. The flow is ideal (inviscid) and absolute
100
atmosphere pressure is 9.81 N/cm?.
Considering the pipe's diameter is (0.20+ ab) m at section BC, find the discharges and the
100
a.
velocities of the flow at other sections (AE, EB, BC, CF, FD). Draw the energy and hydraulic
grade lines of the system.
b.
Assuming the system discharge is constant and has the value you have found in (a), calculate
the minimum pipe diameter that the section BC can take and draw the energy and hydraulic
grade lines of this situation. Note: Absolute vapor pressure of water is 2.26 kN/m.
ab
(7+
m
10
E
F.
m
Transcribed Image Text:The flow is opened to the atmosphere at point D which is fed by a very wide reservoir that hasa water surface elevation of (7+) meters as shown in the tigure given below. Elevation of the 10 horizontal axis BC is 1 meter. At sections AB the diameter of the pipe is (0.4+ ) meters and CD 100 the diameter of the pipe is (0.5+ ) meters. The flow is ideal (inviscid) and absolute 100 atmosphere pressure is 9.81 N/cm?. Considering the pipe's diameter is (0.20+ ab) m at section BC, find the discharges and the 100 a. velocities of the flow at other sections (AE, EB, BC, CF, FD). Draw the energy and hydraulic grade lines of the system. b. Assuming the system discharge is constant and has the value you have found in (a), calculate the minimum pipe diameter that the section BC can take and draw the energy and hydraulic grade lines of this situation. Note: Absolute vapor pressure of water is 2.26 kN/m. ab (7+ m 10 E F. m
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