Question

In: Civil Engineering

A rectangular channel of bottom width B = 7 m carries an average discharge of Q...

A rectangular channel of bottom width B = 7 m carries an average discharge of Q = 8 m3/s. There are two successive long reaches. The first reach has s01=0.015 and n1=0.010; and the second reach has s02=0.0017 and n2=0.021. Classify the slopes.

Solutions

Expert Solution

Ally Wells answered 1 month ago
Next > < Previous

Related Solutions

A rectangular channel with a base width of 3 m carries a discharge of 6 m3/s...
A rectangular channel with a base width of 3 m carries a discharge of 6 m3/s at a depth of 1.1 m. At downstream, there is a gradual rising of a channel bed of 0.1 m. a) Plot the specific energy curve from y = 0.4 m to 1.3 m in a step 0.1 m and from the curve, determine the depth of flow at the downstream section. Label the graph and show your working answers clearly on the graph....
Consider a rectangular channel with a variable width b and horizontal channel bottom, a) Obtain the...
Consider a rectangular channel with a variable width b and horizontal channel bottom, a) Obtain the equation of water surface profile (dy/dx) as function of Froude number and channel width change (db/dx) in a channel transition assuming that over a short distance x, the energy losses can be neglected. b) Using the equation you have obtained, draw the water surface profile if flow is subcritical and if there is an enlargement in channel cross section b in downstream section (2)...
Consider a rectangular channel with a variable width b and horizontal channel bottom, a) Obtain the...
Consider a rectangular channel with a variable width b and horizontal channel bottom, a) Obtain the equation of water surface profile (dy/dx) as function of Froude number and channel width change (db/dx) in a channel transition assuming that over a short distance x, the energy losses can be neglected. b) Using the equation you have obtained, draw the water surface profile if flow is subcritical and if there is an enlargement in channel cross section b in downstream section (2)...
Consider a rectangular channel with a variable width b and horizontal channel bottom, a) Obtain the...
Consider a rectangular channel with a variable width b and horizontal channel bottom, a) Obtain the equation of water surface profile (dy/dx) as function of Froude number and channel width change (db/dx) in a channel transition assuming that over a short distance x, the energy losses can be neglected. b) Using the equation you have obtained, draw the water surface profile if flow is subcritical and if there is an enlargement in channel cross section b in downstream section (2)...
A rectangular laboratory channel has a bottom width of 6.0 in, a Manning roughness coefficient of...
A rectangular laboratory channel has a bottom width of 6.0 in, a Manning roughness coefficient of n = 0.010, longitudinal slope of 2% (So = 0.02). The discharge is 180 gpm. Assume α = 1. The water depth is 2.5 inches at Point A, and 3.0 inches at Point B. The normal depth is 2.066 in and critical depth is 3.228 in. (a) Use the direct step method with one step (Δy = 0.5 in) to determine the distance from...
B. A trapezoidal channel with a bottom width of 4 m and side slopes 4H: 1V...
B. A trapezoidal channel with a bottom width of 4 m and side slopes 4H: 1V carries a discharge of 30 m3 /s. The channel has bed slope= 0.1 % and manning roughness coefficient = 0.015. Determine the following: i. the minimum specific energy ii. the normal depth iii. the critical slope iv. state of the flow in the channel
13.(LAB) A discharge of 25 m3/s is passing in a rectangular channel of bed width 8.0...
13.(LAB) A discharge of 25 m3/s is passing in a rectangular channel of bed width 8.0 meters and water depth 3.0 meters. The channel bed width is gradually contracted from 8.0 meters at section (1) to 6.0 meters at section (2). In the contraction zone, a smooth hump is placed in the channel in which the bed level is gradually increased by 1.00 m. Determine: (i) The change in water levels, (ii).The minimum height of hump so that y2 =...
A trapezoidal channel has a bottom width of 3.25 m and sides with a slope of...
A trapezoidal channel has a bottom width of 3.25 m and sides with a slope of 1 vertical to 1.5 horizontal. The slope of the bed is 1 in 2000 and the depth of water is 1.2 m. a) Using the Manning Formula with n = 0.025, calculate the velocity and the discharge rate of the flow. b) Calculate the Chezy number for the channel and use that to re- calculate the velocity and the discharge rate of the flow....
A rectangular channel carries a flow at a velocity of 2.1 m/sec and at a depth...
A rectangular channel carries a flow at a velocity of 2.1 m/sec and at a depth of 2.1m. The tail end gate of the channel is suddenly closed. Find the height and speed of the surge. What would be the values of these quantities if the gate is partially closed to release half of the flow?
A flow of 2.0 m3 /s is carried in a rectangular channel of 1.8 m width...
A flow of 2.0 m3 /s is carried in a rectangular channel of 1.8 m width at a depth of 1.0 m (section 1). There is an upward step of 0.18 m together with a contraction where b reduces to 1.4 m (section 2). a) Draw the side view and top view of the channel described above. b) Calculate the specific energy at section 1 and plot the specific energy curve. Show y1, E1, V1 2 /2g on the curve....
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT