9) A rectangular channel 8 feet wide carries 2.5 ft/s of water at a depth of...
9) A rectangular channel 8 feet wide carries 2.5 ft/s of water at a depth of 3.2 feet.
a) What are the most efficient attributes (d, A, P, and R) of the channel?
b) If a 1-foot wide pier is placed in the middle of the channel, find the elevation of the water surface at the pier. What is the minimum width of the constriction that will not cause a rise in the upstream water surface?
Homework Answers
Here for the last part of 2nd part one concept is used that is specific energy is constant for both section .E =d +v^2/2g
For rectangular channel Ec=1.5*dc
dc=(q^2/g)^1/3
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9) A rectangular channel 8 feet wide carries 2.5 ft/s of water
at a depth of...
9) A rectangular channel 8 feet wide carries 2.5 ft/s of water at a depth of...
9) A rectangular channel 8 feet wide carries 2.5 ft/s of water at a depth of 3.2 feet. What are the most efficient attributes (d, A, P, and R) of the channel?
A rectangular channel 3 m wide carries 4m3/s of water at a depth of 1.5m. if...
A rectangular channel 3 m wide carries 4m3/s of water at a depth of 1.5m. if an obstruction 15 cm high is placed across the channel, calculate the elevation of the water surface over the obstruction.
2. A 2.5 m wide rectangular channel conveys m wide rectangular channel conveys water at a...
2. A 2.5 m wide rectangular channel conveys m wide rectangular channel conveys water at a normal depth of 2 m. In a part of the channel, the channel width is expanded to 5 m. The local energy loss due to this expansion is about 10% of the upstream velocity head. If the channel slope is 0.03% and the Manning roughness coefficient is about 0.012, calculate the water depth over this transition and show the situation with a simple sketch.
A 8-m wide rectangular channel carries a flow of 96 m3/s at a flow depth of...
A 8-m wide rectangular channel carries a flow of 96 m3/s at a flow depth of 4 m. The channel width is constricted to 6 m in a length of 5 m. Assuming the channel transition has straight and vertical sides, and there are no losses, plot the water-surface profile in the transition. Hint: you should find the water depth when the channel width is 8 m, 7.5 m, 7 m, 6.5 m, and 6 m.
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1. a) A rectangular channel is 5m wide and carries a flow of 5m3 /s. Plot...
1. a) A rectangular channel is 5m wide and carries a flow of 5m3 /s. Plot the specific energy diagram for 0 < y < 2m. What is the critical depth and minimum specific energy? If the flow has a specific energy of 1.5m, what are the two possible flow depths? b) The channel in a) is narrowed to pass through a culvert 2m wide. It still carries 5m3 /s. What is the flow rate/unit width q (m2 /s) in...
A 1.7 m wide, 4000 m long rectangular channel carries 1.6 m/s of water. The depth...
A 1.7 m wide, 4000 m long rectangular channel carries 1.6 m/s of water. The depth of the flow is 0.9 m. The channel is constructed from rough-formed concrete with a roughness coefficient of n-0.015. What is the difference in elevation between the two ends of the channel?
please show all the steps thank you 2. Water flowing at the normal depth in a rectangular concrete channel that is 12 m wide encounters an obstruction, causing the water level to rise above the no...
please show all the steps
thank you
2. Water flowing at the normal depth in a rectangular concrete channel that is 12 m wide encounters an obstruction, causing the water level to rise above the normal depth at the obstruction and for some distance upstream. The water discharge is 126 m3/s, and the channel bottom slope is 0.00086. If the depth of water just upstream from the obstruction (yo) is 4.55 m, find the distance upstream to the point where...
A 10 ft wide rectangular channel is constructed of planed wood. The bottom slope is 0.000,...
A 10 ft wide rectangular channel is constructed of planed wood. The bottom slope is 0.000, and it carries a flow rate of 55 cu. ft/s of water. At Section 1 the depth is 2.50 ft, and at Section 2 the depth is 2.0 ft. Which section is located upstream from the other?
2. A 2.5 m wide rectangular channel conveys m wide rectangular channel conveys water at a normal depth of 2 m. In a part of the channel, the channel width is expanded to 5 m. The local energy loss due to this expansion is about 10% of the upstream velocity head. If the channel slope is 0.03% and the Manning roughness coefficient is about 0.012, calculate the water depth over this transition and show the situation with a simple sketch.
A 1.7 m wide, 4000 m long rectangular channel carries 1.6 m/s of water. The depth of the flow is 0.9 m. The channel is constructed from rough-formed concrete with a roughness coefficient of n-0.015. What is the difference in elevation between the two ends of the channel?
please show all the steps
thank you
2. Water flowing at the normal depth in a rectangular concrete channel that is 12 m wide encounters an obstruction, causing the water level to rise above the normal depth at the obstruction and for some distance upstream. The water discharge is 126 m3/s, and the channel bottom slope is 0.00086. If the depth of water just upstream from the obstruction (yo) is 4.55 m, find the distance upstream to the point where...
A 10 ft wide rectangular channel is constructed of planed wood. The bottom slope is 0.000, and it carries a flow rate of 55 cu. ft/s of water. At Section 1 the depth is 2.50 ft, and at Section 2 the depth is 2.0 ft. Which section is located upstream from the other?
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