Question: The 1 meter wide rectangular cross-section open channel system, whose longitudinal profile is shown in the figure, was designed in two different base slopes. The Manning coefficient depending on the channel lining is n=0.02. Since the uniform flow depth in the second channel with lo2 base slope is yo2= 3.2 meters; a) The flow rate of the current passing through the channel; Q, b) critical current depth; yc, c) critical slope; Drink, d) Determine the uniform flow depth in the first channel. e) Show the course of critical and uniform flow depths over the channel in the figure. f) Decide whether there will be a hydraulic jump by determining the flow regimes in the channels. g) In case of hydraulic jump, take the uniform flow depth in the river regime as the depth after the hydraulic jump and find the flow depth before the hydraulic jump. h) Find the energy loss during the hydraulic jump. i) Calculate the unevaluable power of the current during the hydraulic jump. lo1=0.04 lo2=0.004
Question: The 1 meter wide rectangular cross-section open channel system, whose longitudinal profile is shown in the figure, was designed in two different base slopes. The Manning coefficient depending on the channel lining is n=0.02. Since the uniform flow depth in the second channel with lo2 base slope is yo2= 3.2 meters; a) The flow rate of the current passing through the channel; Q, b) critical current depth; yc, c) critical slope; Drink, d) Determine the uniform flow depth in the first channel. e) Show the course of critical and uniform flow depths over the channel in the figure. f) Decide whether there will be a hydraulic jump by determining the flow regimes in the channels. g) In case of hydraulic jump, take the uniform flow depth in the river regime as the depth after the hydraulic jump and find the flow depth before the hydraulic jump. h) Find the energy loss during the hydraulic jump. i) Calculate the unevaluable power of the current during the hydraulic jump. lo1=0.04 lo2=0.004
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Question: The 1 meter wide rectangular cross-section open channel system, whose longitudinal
profile is shown in the figure, was designed in two different base slopes. The Manning coefficient
depending on the channel lining is n=0.02. Since the uniform flow depth in the second channel with
lo2 base slope is yo2= 3.2 meters;
a) The flow rate of the current passing through the channel; Q,
b) critical current depth; yc,
c) critical slope; Drink,
d) Determine the uniform flow depth in the first channel.
e) Show the course of critical and uniform flow depths over the channel in the figure.
f) Decide whether there will be a hydraulic jump by determining the flow regimes in the channels.
8) In case of hydraulic jump, take the uniform flow depth in the river regime as the depth after the
hydraulic jump and find the flow depth before the hydraulic jump.
h) Find the energy loss during the hydraulic jump.
i) Calculate the unevaluable power of the current during the hydraulic jump.
lo1=0.04
lo2=0.004
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