WATER RESOURCES ENGINEERING
3rd Edition
ISBN: 9781119490579
Author: Mays
Publisher: WILEY
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Chapter 5, Problem 5.2.2P
To determine
The critical flow depth.
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) Determine the critical flow depth in a long length of lined trapezoidal channel of base width of 3.5 m and a side slopes of 1:1 when the flow rate is 20 m3/s. the normal depth is 1.727m.
Determine the normal depth of a flow in a concrete lined rectangular channel 20.0M wide carrying 150m3/s with a bed slope of 0.0025 and Manning'"s n of 0.016,assuming the channel can be considered as wide
A uniform flow occurs in a 4.3m diameter circular concrete culvert, but the depth changes depending on the weather (due to storms). The Manning coefficient is n = 0.014, and the channel slope is So = 0.0004.
What is the discharge in m3/s when the depth of flow is 3.3m?
Chapter 5 Solutions
WATER RESOURCES ENGINEERING
Ch. 5 - Prob. 5.1.1PCh. 5 - Prob. 5.1.2PCh. 5 - Prob. 5.1.3PCh. 5 - Prob. 5.1.4PCh. 5 - Prob. 5.1.5PCh. 5 - Prob. 5.1.6PCh. 5 - Prob. 5.1.7PCh. 5 - Prob. 5.1.8PCh. 5 - Prob. 5.1.9PCh. 5 - Prob. 5.2.1P
Ch. 5 - Prob. 5.2.2PCh. 5 - Prob. 5.3.1PCh. 5 - Prob. 5.3.2PCh. 5 - Prob. 5.3.3PCh. 5 - Prob. 5.3.4PCh. 5 - Prob. 5.3.5PCh. 5 - Prob. 5.3.6PCh. 5 - Prob. 5.4.1PCh. 5 - Prob. 5.4.2PCh. 5 - Prob. 5.5.1PCh. 5 - Prob. 5.5.2PCh. 5 - Prob. 5.5.3PCh. 5 - Prob. 5.5.4PCh. 5 - Prob. 5.5.5PCh. 5 - Prob. 5.5.6P
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- 4. A trapezoidal channel with 3 meters bottom width, side slope 2H:1V, channel gradient of 0.002, and n= 0.025, carries a discharge of 200m^3/min. Compute the normal depth and velocity.arrow_forwardA long length of lined trapezoidal channel has a base width 6.0 m and side slopes of 2 horizontal : 1 vertical. The bed slope is 0.001, Manning's n = 0.015 and the flow rate is 10 m³ / s find the normal depth, critical depth, the critical velocity, and the minimum specific energy of the flow.arrow_forwardA channel 1 m wide and 1 m deep carries a flow of 0.62 m³ / s on a slope of 0.001 with n = 0.012. The channel terminates in a free discharge ( note: free discharge means in critical condition of flow). Find the normal depth and critical depth in the vicinity of the discharge.arrow_forward
- Compute the normal depth of flow in a 36-in diameter culvert with a slope of 0.0016 and a Manning's n of 0.015 for a discharge of 20 cfsarrow_forwardA trapezoidal channel of 2.0m bed width and 3:2 side slope carries a discharge of 10m3/sec with a depth of flow of 0.5m. Determine whether the flow is supercritical or subcritical. If hydraulic jump where to form. what would be its height and efficiency. Assume mannings coefficient n = 0.025arrow_forwardDischarge in a concrete channel with bottom width of 3m is 10 cumecs. Bed slope of a given channel is equal to 1 in 664 . Find the normal, critical and hydraulic depths of flow if: 1. the channel has vertical sides 2. the channel is trapezoidal with 3H:2V 3. the channel is triangular with apex angle equal to 1000arrow_forward
- A rectangular channel with a bottom width of 4.0 m and a bottom slope of 0.0008 has a discharge of 1.50 m3 /sec. In a gradually varied flow in this channel, the depth at a certain location is found to be 0.30 m. assuming n = 0.016, determine the type of GVF profile.arrow_forwardWater Resources Engineering: Open Channel Flow A 3.7 meter wide rectangular channel with with a bed slope of 0.00019 and a depth of flow of 2.2 meters. Manning's roughness coefficient is 0.019. Find: a) Can Manning's equation be applied to this system (i.e. Is the flow fully turbulent)? b) Regardless to the answer to part a, determine the steady uniform discharge in the channel (i.e. the "normal depth")arrow_forwardA welded steel channel, rectangular in cross section and 1.55 m wide is laid on a slope of 1 and 500, if the flow depth is 1.28 m determine the dischargearrow_forward
- In an open rectangular channel of width 10 ft, Discharge is 200 ft³/sec and let total specific energy (E) = 6 ft. determine the two possible flow depths and plot the graph between flow depth and specific energy up to depth of 8 ft.arrow_forwardA compound channel has the cross-section shape shown in Figure 2 below. Figure 2: Engineered channel cross-section The rectangular central channel has n = 0.025, and the two overbanks have n = 0.070. The bed slope is 0.018. Determine: The total flow rate in cfs for the cross-section for the water surface position shown, considering vertical interfaces between the subsections and including those interfaces in the wetted perimeter.arrow_forward4. A trapezoidal channel with 3 meters bottom width, side slope 2H:1V, channel gradient of 0.002, and n = 0.025, carries a discharge of 200 m3 /min. Compute the normal depth and velocity.arrow_forward
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