A broad-crested weir 1.6 m in height is built across the floor of a 3.25-m-wide rectangular channel with the depth of water upstream of the weir being 2.45 m. Neglect friction losses and the upstream velocity head.
a) What is the discharge across the weir?
b) What is the water depth on top of the weir?
Homework Answers
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A broad-crested weir 1.6 m in height is built across the floor
of a 3.25-m-wide rectangular...
B) A weir of 6 m long is to be built across a rectangular channel to...
B) A weir of 6 m long is to be built across a rectangular channel to discharge a flow of 7.5 m3/sec. If the maximum depth of water on the upstream side of weir is to be 1.5 m, what should be the height of the weir? Adopt Cd = 0.6.
Q2. When the depth of water just upstream of broad-crested weir with the 0.6 m height...
Q2. When the depth of water just upstream of broad-crested weir with the 0.6 m height is 0.9 m, what is flow rate per unit width while there is critical condition on the weir (no head loss)? v}/2g ly:-0.9m 06m
Question 3 A chute spillway is placed across a 0.4m wide channel with 100 L/s discharge which cre...
Question 3 A chute spillway is placed across a 0.4m wide channel with 100 L/s discharge which creates 0.25 m and 0.05m upstream and downstream depths respectively. At what height hA should the top of a broad crested weir (C 1.60) be placed above the channel bottom, if a free jump is to be formed between the spillway and weir? (20 marks) 0.25m hA 0.05m
Question 3 A chute spillway is placed across a 0.4m wide channel with 100 L/s...
The flow of water over the broad-crested weir is 18 m/s. The weir and the channel...
The flow of water over the broad-crested weir is 18 m/s. The weir and the channel have a width of 5 m. (Figure 1) Part A Determine the depth of water y within the channel. Take Cu = 0.80. Express your answer to three significant figures and include the appropriate units. НА ? Value Units Submit Request Answer Figure 1 of 1 > Provide Feedback Next > 1 m
Water flows steadily along a horizontal open channel of uniform width, over a broad-crested weir. The...
Water flows steadily along a horizontal open channel of uniform width, over a broad-crested weir. The channel bed upstream from the weir (to the left) is d -0.75m above the channel bed downstream from the weir (to the right), as shown in the figure below. The volume flow rate per unit width is Q 6m2 s-1, and the downstream depth of the water is ћ2-d. Take the magnitude of the acceleration due to gravity as g 10ms-2. d - 0.75...
The flow of water over the broad-crested weir is 15 m3/s. The weir and the channel...
The flow of water over the broad-crested weir is 15 m3/s. The weir and the channel have a width of 5 m. (Figure 1) Part A Determine the depth of water y within the channel. Take Cw = 0.80. Express your answer to three significant figures and include the appropriate units. μΑ ? y = Value Units Submit Request Answer Figure < 1 of 1 < Return to Assignment Provide Feedback 1 m Water flows at 450 ft3/s over the...
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.
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...
Water flows in an open rectangular channel at a depth of 1 m with a velocity of 4 m/s.
4.72) Water flows in an open rectangular channel at a depth of 1 m with a velocity of 4 m/s. The bottom of the channel drops over a short length a distance of 1 m. Calculate the two possible depths of flow after the drop. Neglect all losses. 4.73) If the head loss in Problem 4.72 across the channel drop is 0.2 m, determine the two possible depths of flow.
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?
B) A weir of 6 m long is to be built across a rectangular channel to discharge a flow of 7.5 m3/sec. If the maximum depth of water on the upstream side of weir is to be 1.5 m, what should be the height of the weir? Adopt Cd = 0.6.
Q2. When the depth of water just upstream of broad-crested weir with the 0.6 m height is 0.9 m, what is flow rate per unit width while there is critical condition on the weir (no head loss)? v}/2g ly:-0.9m 06m
Question 3 A chute spillway is placed across a 0.4m wide channel with 100 L/s discharge which creates 0.25 m and 0.05m upstream and downstream depths respectively. At what height hA should the top of a broad crested weir (C 1.60) be placed above the channel bottom, if a free jump is to be formed between the spillway and weir? (20 marks) 0.25m hA 0.05m
Question 3 A chute spillway is placed across a 0.4m wide channel with 100 L/s...
The flow of water over the broad-crested weir is 18 m/s. The weir and the channel have a width of 5 m. (Figure 1) Part A Determine the depth of water y within the channel. Take Cu = 0.80. Express your answer to three significant figures and include the appropriate units. НА ? Value Units Submit Request Answer Figure 1 of 1 > Provide Feedback Next > 1 m
Water flows steadily along a horizontal open channel of uniform width, over a broad-crested weir. The channel bed upstream from the weir (to the left) is d -0.75m above the channel bed downstream from the weir (to the right), as shown in the figure below. The volume flow rate per unit width is Q 6m2 s-1, and the downstream depth of the water is ћ2-d. Take the magnitude of the acceleration due to gravity as g 10ms-2. d - 0.75...
The flow of water over the broad-crested weir is 15 m3/s. The weir and the channel have a width of 5 m. (Figure 1) Part A Determine the depth of water y within the channel. Take Cw = 0.80. Express your answer to three significant figures and include the appropriate units. μΑ ? y = Value Units Submit Request Answer Figure < 1 of 1 < Return to Assignment Provide Feedback 1 m Water flows at 450 ft3/s over the...
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.
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 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?
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