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4. Given: Discharge = 125 cfs; upstream bottom width = 8 ft; upstream flow depth =...
5. Given: Discharge = 400 cfs; upstream bottom width = 12 ft; upstream flow depth =...
5. Given: Discharge = 400 cfs; upstream bottom width = 12 ft; upstream flow depth = 1 ft, downstream bottom width = 32 ft; length of transition = 100 ft. What should be the downstream flow depth (to an accuracy of 0.1 ft) for the hydraulic jump to occur approximately in the middle of the transition (Section 0 + 50)?
A hydraulic jump is to be formed in a trapezoidal channel with a base width of...
A hydraulic jump is to be formed in a trapezoidal channel with a base width of 20 ft and side slope of 2:1. The upstream depth is 1.25 ft and the flow (Q) is 1000 cfs. Find the downstream depth and the amount of lost head (energy loss) across the jump.
A trapezoidal channel has a side slope of 1:1 and a bed width of 6.0 m....
A trapezoidal channel has a side slope of 1:1 and a bed width of 6.0 m. A hydraulic jump with a height of 0.5 m (i.e. the difference between water surface elevation upstream and downstream of the jump) is encountered in the channel. If the channel has a discharge of 10 m3/s, determine the critical depth in the channel. Plot the momentum curve and determine the flow depth immediately upstream and downstream of the jump.
A trapezoidal channel has a bottom width 10 ft and side slope of 2H:1V. It carries...
A trapezoidal channel has a bottom width 10 ft and side slope of 2H:1V. It carries a discharge of 250 cfs at a water depth of 4.8ft. The channel is to pass under a highway and a culvert is proposed for a smooth transition from the channel to the culvert. You are asked to design this transition under the following design criteria: First of all, it is important to keep in mind that the culvert shall not act as a...
#4 [5 points] A trapezoidal channel of bottom width 25 ft and side slope 1:2.5 carries...
#4 [5 points] A trapezoidal channel of bottom width 25 ft and side slope 1:2.5 carries a discharge of 450 cfs with a normal depth of 3.5 ft. The elevations at the beginning and end of the channel are 685 and 650 ft., respectively. Determine the length of the channel if n = 0.02. #5 [5 points] Water is flowing at a rate of 4.5 m3/s in a trapezoidal channel whose bottom width is 2.4 m and side slopes are...
4. (10 marks) Given a flow of 100 cfs in a rectangle channel with 6 ft....
4. (10 marks) Given a flow of 100 cfs in a rectangle channel with 6 ft. base, Manning roughness coefficient 0.01, and the slope is channel is 1.5%; what is the normal depth and velocity of flow and what is the critical depth and velocity of flow? Is the flow subcritical or supercritical and why (provide a graphical solution on an appropriate chart)?
An 8 ft. wide and 1000 ft. long prismatic rectangular channel is carrying a flow of 13 cfs
An 8 ft. wide and 1000 ft. long prismatic rectangular channel is carrying a flow of 13 cfs. The channel has a slope of 0.001 ft/ft and Manning's n is 0.035. The depth of water in the channel is 1.25 ft. a. Another engineer computed the normal depth in the channel to be 1.25 ft, which is the existing depth of flow. Check that computation to see if it correct (show all work) b. Compute the critical depth of flow in the...
Question 7 Consider flow in an open channel with slope 1:500 and a Manning's n of...
Question 7 Consider flow in an open channel with slope 1:500 and a Manning's n of 0.030. The channel has a rectangular cross-section with a width of 5 m (a) Uniform flow in this channel has a depth of 1.6 m. What is the flowrate in the channel? (4 marks) (b) Suppose that this uniform flow (at point 1 in the figure below) encounters an obstacle on the channel bed (at point 2). How big would the obstacle need to...
A rectangular channel with a width of 6.0 ft. conveys a discharge of 115 ccs. If...
A rectangular channel with a width of 6.0 ft. conveys a discharge of 115 ccs. If the depth of flow is 3.0 ft. What is the froude number? Is the flow subcritical or supercritical?
4. Given: The peak discharge from a watershed is 600 cfs. Find: (a) Design a rectangular...
4. Given: The peak discharge from a watershed is 600 cfs. Find: (a) Design a rectangular channel to carry this flow on a slope of 0.5 % at a depth no more than 3 ft. The minimum velocity is 1 ft/s and the maximum velocity is 10 ft/s. Draw a sketch of your design and state any assumptions you make. Check your results using an online calculator and paste a screen shot of your check into your assignment. (b) Repeat...
5. Given: Discharge = 400 cfs; upstream bottom width = 12 ft; upstream flow depth = 1 ft, downstream bottom width = 32 ft; length of transition = 100 ft. What should be the downstream flow depth (to an accuracy of 0.1 ft) for the hydraulic jump to occur approximately in the middle of the transition (Section 0 + 50)?
A hydraulic jump is to be formed in a trapezoidal channel with a base width of 20 ft and side slope of 2:1. The upstream depth is 1.25 ft and the flow (Q) is 1000 cfs. Find the downstream depth and the amount of lost head (energy loss) across the jump.
A trapezoidal channel has a bottom width 10 ft and side slope of 2H:1V. It carries a discharge of 250 cfs at a water depth of 4.8ft. The channel is to pass under a highway and a culvert is proposed for a smooth transition from the channel to the culvert. You are asked to design this transition under the following design criteria: First of all, it is important to keep in mind that the culvert shall not act as a...
#4 [5 points] A trapezoidal channel of bottom width 25 ft and side slope 1:2.5 carries a discharge of 450 cfs with a normal depth of 3.5 ft. The elevations at the beginning and end of the channel are 685 and 650 ft., respectively. Determine the length of the channel if n = 0.02. #5 [5 points] Water is flowing at a rate of 4.5 m3/s in a trapezoidal channel whose bottom width is 2.4 m and side slopes are...
4. (10 marks) Given a flow of 100 cfs in a rectangle channel with 6 ft. base, Manning roughness coefficient 0.01, and the slope is channel is 1.5%; what is the normal depth and velocity of flow and what is the critical depth and velocity of flow? Is the flow subcritical or supercritical and why (provide a graphical solution on an appropriate chart)?
Question 7 Consider flow in an open channel with slope 1:500 and a Manning's n of 0.030. The channel has a rectangular cross-section with a width of 5 m (a) Uniform flow in this channel has a depth of 1.6 m. What is the flowrate in the channel? (4 marks) (b) Suppose that this uniform flow (at point 1 in the figure below) encounters an obstacle on the channel bed (at point 2). How big would the obstacle need to...
4. Given: The peak discharge from a watershed is 600 cfs. Find: (a) Design a rectangular channel to carry this flow on a slope of 0.5 % at a depth no more than 3 ft. The minimum velocity is 1 ft/s and the maximum velocity is 10 ft/s. Draw a sketch of your design and state any assumptions you make. Check your results using an online calculator and paste a screen shot of your check into your assignment. (b) Repeat...
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