EBK WATER RESOURCES ENGINEERING
3rd Edition
ISBN: 9781119493167
Author: Mays
Publisher: VST
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Chapter 5, Problem 5.3.3P
To determine
The depth of flow 200 ft and 400 ft upstream of the obstruction and the distance of occurrence of the normal depth upstream.
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A very long trapezoidal channel has a bottom width of 18 ft, side slope of 2, longitudinal bottom slope of 0.01, Manning roughness factor of 0.020, and it carries 800 cfs. The normal depth is 9.25 ft and the critical depth is 3.45 ft. The flow depth at a section along this channel is 3.70 ft. The flow depth 10 ft upstream is most likely to be
Select one:
a. 5.20 ft
b. 3.79 ft
c. 3.45 ft
d. 3.61 ft
A lined rectangular channel with Manning's n =
0.015 is 5 m wide and has a flow depth of 2m
with the bed slope of 1 in 1600. Retaining the
rectangular shape of channel section and the same
total area of lining, to what maximum extent can
the discharge be increased without changing the
bed slope? Does the flow change from sub critical
to super critical state by this increase in discharge.
A lined rectangular channel with Manning'sn
= 0.015 is 5 m wide and has a flow depth of
2m with the bed slope of 1 in 1600. Retaining
the rectangular shape of channel section and
the same total area of lining, to what maximum
extent can the discharge be increased without
changing the bed slope? Does the flow change
from sub critical to super critical state by this
increase in discharge.
Chapter 5 Solutions
EBK WATER RESOURCES ENGINEERING
Ch. 5 - Prob. 5.1.1PCh. 5 - Prob. 5.1.2PCh. 5 - Prob. 5.1.3PCh. 5 - Prob. 5.1.4PCh. 5 - Prob. 5.1.5PCh. 5 - Prob. 5.1.6PCh. 5 - Prob. 5.1.7PCh. 5 - Prob. 5.1.8PCh. 5 - Prob. 5.1.9PCh. 5 - Prob. 5.2.1P
Ch. 5 - Prob. 5.2.2PCh. 5 - Prob. 5.3.1PCh. 5 - Prob. 5.3.2PCh. 5 - Prob. 5.3.3PCh. 5 - Prob. 5.3.4PCh. 5 - Prob. 5.3.5PCh. 5 - Prob. 5.3.6PCh. 5 - Prob. 5.4.1PCh. 5 - Prob. 5.4.2PCh. 5 - Prob. 5.5.1PCh. 5 - Prob. 5.5.2PCh. 5 - Prob. 5.5.3PCh. 5 - Prob. 5.5.4PCh. 5 - Prob. 5.5.5PCh. 5 - Prob. 5.5.6P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- A rectangular channel with a bottom width of 4.0m and a bottom slope of 0.0008 has a discharge of 1.5m3/sec.In a GVF in this channel,the depth at a certain location is found to be 0.3 m.Assuming n=0.016, determine type of GVF profile.arrow_forwardQle: A flow rate of 0.4m ^ 3 /sec is to be carried in an open channel at a velocity of 1.5 m/sec. If the channel cross section is trapezoidal with water depth equal to the width of the channel bottom and side slope of 1:1. Manning roughness coefficient is 0.03. Determine: a) The bottom width b) The channel bed slopearrow_forwardA trapezoidal open-channel has a bottom width of 30 ft and side slopes of 2:1 (H:V). The channel is paved with a concrete surface. If the channel is laid on a slope of 0.0001 and carries a uniform flow at a depth of 6 ft, determine: a) the discharge (flowrate) in ft3/s. b) the state of the flow (critical, subcritical, super critical)?arrow_forward
- (a) A trapezoidal channel has a bottom width of Bw = 10 m and 1 vertical to z=2m horizontal. The channel has a slope of 0.0001 and a Manning's roughness of n = 0.0501. If the uniform flow depth is yn = 7m what is the discharge in the channel? (b) Compute the critical depth (yc) for this trapezoidal channel given discharge from (a)arrow_forwardWater is flowing uniformly with a discharge of 22.6 m³/s and flow depth of 2.3 m in a rectangular open channel of width 4 m. At one section, the channel is to be constricted. If the channel width at constriction is 2.8 m, calculate the flow depth at the constriction and also the alternate depths. Meanwhile, what will happen if the channel width at constriction is 3.6 m? Determine the flow depths at just upstream and downstream of the constriction as well as the flow depth at the constriction section. Please give right answer onlyarrow_forwardIn a 3.0 m wide open rectangular channel, the flow rate is (1158) lt/sec flows. The depth of the channel is 2.9 m. At a downstream section, there is constriction with a width of 2.50 m and a 0.20 m bump on the bottom. Calculate the water depths of both upstream and downstream.arrow_forward
- A trapeziodal channel lined with grass (n = 0.027) has a bottom width of 4.25 feet, side slopes of 2 horizontal to 1 vertical, and a slope of 1.1 percent. Water is flowing at a depth of 2.35 feet. a) what is the discharge? b) what is the velocity?arrow_forwardHydraulics Coursearrow_forward. For a rectangular channel with depth 1.2 m and 1.8m wide S=0.002 and n=0.012 ,what would be the velocity of the flow?arrow_forward
- QUESTION A trapezoidal channel with 3 meters bottom width, side slope 2H: 1V, channel gradient of 0.002, and n = 0.025, carries a discharge of 200 m3/min. Compute the normal depth and velocity.arrow_forward5) Determine the flow in a trapezoid channel having base width of 4m and side slope 1:1 if the critical depth is 2.3m.arrow_forwardQ-OCF A rectangular open channel has a width of 5m and a bed slope of 0.001. For a uniform flow of depth 2m, the velocity is 2m/s. What is the Manning's roughness coefficient for the channel?arrow_forward
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