A discharge of 1.8 m/s is carried in a canal with the cross section shown below....
Problem 1 (20 points) A discharge of 1.8 m/s is carried in a canal with the cross section shown below. The canal is 1400 m long and drops 0.5 m in elevation over the distance. Manning's n for the channel is estimated to be 0.020. Given w = 3.0 h. What is the value of w (in m) for this channel? K h
Q2) A canal of trapezoidal section has bed width of 8 m and bed slope of 1 in 4000. If the depth of flow is 2.4 m and side slopes of the chamel are 1 horizontal to 3 vertical, determine the average flow velocity and the discharge carried by the channel. Also compute the average shear stress at the channel boundary. Take value of Chezy's constant = 55. Q3) 6.11. A power canal of trapezoidal section has to be excavated...
(b) The cross-section of a flow in a straight reach of river during a flood is shown in Figure 1. The main channel has a Manning's roughness of 0.022 whereas the flood banks are grassed and have a Manning's roughness of 0.035. The longitudinal slope of the channel So is 0.0002 n 0.035 1) 1.5 m 3 m 4 m 3 m n 0.022 6 m Figure 1 Using the Horton Equation for composite roughness, determine (i) The equivalent Manning's...
Determine the streamflow discharge for a stream cross section with the data below: Section Velocity (m/s) | Area (m} Sample Points 0.2D 0.8D 1 0.5 0.3 4.0 2 0.8 0.8 6.0 3 1.5 1.6 10.0 4 2.0 1.1 9.0 5 0.6 0.6 5.0
In a rectangular section of width 8.4 m in an irrigation canal carrying a flow of 24 m3/s at depth of 2.8 m, a vertical gate is to be installed. If the flow is to be passed through the 2. gate with a head drop of 0.32 m, under submerged flow conditions, obtain the opening height of the gate. If the U/S section of the canal is rectangular with the same width obtain the slope of the canal if the...
PROBLEM #2 The drawing shown below on this page (Figure 16) is a cross section through the entrance of a concrete-lined irrigation canal at a low di. version dan. The reservoir water surface is maintained at 6.0 feet above the canal invert. REQUIRED: (a) If the canal invert slope is 0.0003 ft/ft, what is the maximum discharge through the canal? (b) As the canal invert slope is increased, at what slope will no further increase in the discharge occur? (e)...
QUESTION 1 Water flows uniformly with full capacity in an open channel where cross section is as shown in Figure 1. The Manning's coefficient, n is 0.017 and the bed slope is 0.0012. Determine the flow rate. 1.5 m 0.3 m radius Z = 0.5 2 = 0.7 1.0 m 1.0 m Figure 1
Question 6 A concrete-lined trapezoidal channel with uniform flow has a normal depth of 1.5 m. The base width is 4 m and the side slopes are equal at 1 vertical to 2 horizontal. Mannin‘s n-0015. The bed slope 0.001 Compute the mean velocity and discharge. If the above channel were to be designed for flooding, it may have a section like in Figure below 8 m 8 m 4 m When the flow goes over the top of the...
In the channel whose cross-section i s drawn below, calculate the critical depth when the discharge is: a) 1.8m/s (assume that this flow remains in the lower triangular section) b) 12m/s (assume the critical depth occurs within the top section of the channel) 1.5m Ус 2m 1.5m 45° 45°
Q1. The stage-discharge data of a river are given below. Establish a stage discharge relationship to predict the stage for known discharge. Assume the stage value for a zero discharge as 20.50 m. Also determine the stage of river corresponding to a discharge of 2600 m3/s. Table 1: Stage discharge data Stage (m): 21.95 22.45 22.8 2323.4 23.75 23.65 Q (m3/s)100 220 295 400 490 500 640 Stage (m) 24.05 24.55 24.85 25.4 25.15 25.55 25.9 m3 /s) 780 1010...