A nearly horizontal rectangular section with a width of 25 feet carries 1500 cfs. There is a contraction in the channel of 10 feet. If the depth at the contraction is critical determine the upstream channel depth in feet. Do not include the units in the solution and round to the tenths digit.
A nearly horizontal rectangular section with a width of 25 feet carries 1500 cfs. There is a contraction in the channel of 10 feet. If the depth at the contraction is critical determine the upstream channel depth in feet. Do not include the units in the solution and round to the tenths digit.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Question 4
A nearly horizontal rectangular section with a width of 25 feet carries 1500
cfs. There is a contraction in the channel of 10 feet. If the depth at the
contraction is critical determine the upstream channel depth in feet. Do not
include the units in the solution and round to the tenths digit.
Question 5
Assume you have the channel reach shown that is mild (dn>dc); calculate the
upstream and downstream depths of the hydraulic jump (note there is a
hydraulic jump because upstream there is a gate controlling the water to
below critical. Also determine the length of the hydraulic jump. The flow rate
in the channel is 1500 cfs, , the base width is 25 ft and the normal depth is 10
feet.
upstream depth =
ft
downstream depth =
ft
length of jump =
ft
Round all you answers to the hundredths digit and do not include units in the
solutions and on your scratch paper provide a sketch of the channel in profile
view.
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