Question

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=0.0077 and n2=0.021. Classify the slopes.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The discharge in a channel with bottom width 3 m is 12 m3 s–1. If Manning’s...
The discharge in a channel with bottom width 3 m is 12 m3 s–1. If Manning’s n is 0.013 m-1/3 s and the streamwise slope is 1 in 200, find the normal depth if: (a) the channel has vertical sides (i.e. rectangular channel); (b) the channel is trapezoidal with side slopes 2H:1V. (Answer with steps plz)
Water flows in a rectangular channel in which the bottom width is b = 0.9 (m)....
Water flows in a rectangular channel in which the bottom width is b = 0.9 (m). The channel lining has an estimated Manning’s of n = 0.017, and the longitudinal slope of the channel is S% = 0.50. If the flowrate is Q = 1696 (L/s) and the depth of flow at a gaging station is Y = 0.22 (m), Calculate the critical depth yc Calculate the normal depth yn Classify the water surface profile. State whether the depth increases...
A trapezoidal concrete channel (n = 0.015) has side slopes of 2H:1V, a bottom width of...
A trapezoidal concrete channel (n = 0.015) has side slopes of 2H:1V, a bottom width of 10.0 ft, and a longitudinal slope of 0.005. (a) Compute the discharge rate (in cfs) and velocity (ft/s) when the water depth is 3.0 ft. (b) Compute normal depth and critical depth (in feet) for a discharge rate of 300 cfs.
A trapezoidal channel has a bottom width of 5 m and side slopes m = 2....
A trapezoidal channel has a bottom width of 5 m and side slopes m = 2. If the flow rate is 20 m3/s, what is critical depth?
A. Starting from the specific energy equation [E = y + v2 /(2g)], drive an expression...
A. Starting from the specific energy equation [E = y + v2 /(2g)], drive an expression for the critical flow depth (yc) in a rectangular channel as a function of the flow rate /unit width (q). Proof also that Froude number in that case =1.0 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 =...
EXAMPLE 6.1 A trapezoidal irrigation canal has a bottom width of b¼1.2m, side slopes of m¼2...
EXAMPLE 6.1 A trapezoidal irrigation canal has a bottom width of b¼1.2m, side slopes of m¼2 (2H:1V), and a longitudinal bottom slope of S0¼0.0005. A rectangular sharp-crested weir placed in this channel has a crest height of p¼0.70m, and a crest length of Lw¼0.80m. The water surface elevation at the approach section is h0¼0.77m above the weir crest. Determine the discharge in the canal.
A concrete, trapezoidal channel with a 5-m bottom width and side slopes of 1:1 (H:V) discharges...
A concrete, trapezoidal channel with a 5-m bottom width and side slopes of 1:1 (H:V) discharges 35 m3/sec. The bottom slope of the channel is 0.004. A dam is placed across the channel and raises the water level to a depth of 3.4 m. determine the channel and flow classification (e.g., M-2, S-1) upstream of the dam and explain your supporting logic. then compute the water surface profile at 50-m intervals until you reach the hydraulic jump. Use a spreadsheet...
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. (a) Determine normal depth (report your answer in inches) (b) Determine critical depth (report your answer in inches) (c) Determine category of channel slope (mild or steep). State the basis...
A long rectangular concrete channel (b = 10 ft, n = 0.015) carries 400 cfs. There...
A long rectangular concrete channel (b = 10 ft, n = 0.015) carries 400 cfs. There is a grade break in the channel; the slope upstream of the grade break is 0.02 and the slope downstream of the grade break is 0.002. The following equations are valid for a rectangular channel: • DC = [(Q2)/(g*b2)]1/3 • y2 = 0.5*y1*[(1+8NFr12)1/2 -1] (for hydraulic jump) • NFr = v/(g*y)1/2 a) Use calculations to classify each section of the channel (steep, mild, horizontal,...
A long rectangular concrete channel (b = 10 ft, n = 0.015) carries 400 cfs. There...
A long rectangular concrete channel (b = 10 ft, n = 0.015) carries 400 cfs. There is a grade break in the channel; the slope upstream of the grade break is 0.02 and the slope downstream of the grade break is 0.002. The following equations are valid for a rectangular channel: DC = [(Q2)/(g*b2)]1/3 y2 = 0.5*y1*[(1+8NFr12)1/2 -1] (for hydraulic jump) NFr = v/(g*y)1/2 a) Use calculations to classify each section of the channel (steep, mild, horizontal, adverse or critical)...