Question 2 Figure 2.1 shows the formation of a hydraulic jump in a rectangular open channel having a base width, B, of 3 m, a bed slope of 0.004, the Manning's coefficient, n, of 0.01 and a discharge, Q, of 15 m'/s. Determine the state of flow, yı and the head loss in the jump. Q Y2 Yo So = 0.004 n= 0.01 Fr,<1 Fr>1 Figure 2.1: Hydraulic Jump

Question 2 Figure 2.1 shows the formation of a hydraulic jump in a rectangular open channel having a base width, B, of 3 m, a bed slope of 0.004, the Manning's coefficient, n, of 0.01 and a discharge, Q, of 15 m'/s. Determine the state of flow, yı and the head loss in the jump. Q Y2 Yo So = 0.004 n= 0.01 Fr,<1 Fr>1 Figure 2.1: Hydraulic Jump

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question 2 Figure 2.1 shows the formation of a hydraulic jump in a rectangular open channel having a base width, B, of 3 m, a bed slope of 0.004, the Manning's coefficient, n, of 0.01 and a discharge, Q, of 15 m/s. Determine the state of flow, yı and the head loss in the jump. Y2 Yo So = 0.004 Yı n= 0.01 Fr,>1 Fr,<1 Figure 2.1: Hydraulic Jump
: A box culvert, as shown in the figure, was designed to carry a discharge (Q m/s) from a square channel. Manning coefficient for channel and culvert is 0.015. The longitudinal slope of channel is 0.00005. The length of the culvert is 75m, Ke=0.16, and Ko = 1.0. y of soil ys= 1.6 ton/m y of conc. Ye= 2.4 ton/m y of water yw=1.0 ton/m Use 40 ton for L.L If the entrance of culvert is full submerged: - 1. What is the diameter of the culvert (use 1 dig only)? 2. What is the total head loss along the culvert (use 3 digs only)? 3. What is the total load on Top of the culvert (use 2 digs only)? 0.1 4 Earth Filling Y 0.2 Y Scanned with CamScanner X=6.2 Q=8.2
Onestion 2 : Choose the correct letter, A, B, C or D A 1 Esumate the flow velocity in m/s through a best hydraulic circular channel of 2 m diameter with a bed slope of 0.001 and n=0.012. 2 For a rectangular channel if the discharge per unit width= 10 m³/s.m, the critical velocity in m/s is? 3 For a rectangular channel if the flow velocity = 1.5 m/s, and the flow depth = 2m, what is the classification of this flow? 4 For a rectangular channel, if the Froude number = 1.5 and the initial depth=0.8 m, the depth after hydraulic jump occurs is: 5 At the exit flow under a sluice gate the depth of flow was 0.5 m, if y2=1.5 m, calculate the head loss across the jump 6 The pump curve of single pump is given by Hp = 15-100², if the system curve Hsu =20-20², estimate the flow delivered to the system by 3 pumps in series in m³/s 7 The pump curve of single pump is given by H₂=40-25Q², if the system curve HSH =20-20², estimate the flow delivered to the system by 3 pumps in parallel in m³/s What is…
8. Known:Rectangular Hydraulic •Q = 18 m^3 /s •channel, 3 m wide • Unfinished form concrete channel • jump occurs at a depth of y1 = 1 m Determine: Velocity before hydraulic jump and Depth after hydraulic jump
A hydraulic jump takes place in a rectangular channel downstream of a spillway. The flow in the channel is Q =900 cfs. The conjugate depth (y1) upstream of the jump was measured at 1.4 feet. The channel width is B = 15feet. (a) Compute the conjugate depth y2 downstream of the hydraulic jump.(b) What type of jump are we looking at in this problem? Refer to the five types presented (in the figureabove) by Prof. Ven Te Chow, the father of watershed hydraulics and physical hydrology.(c) Evaluate the specific energies E1 and E2 at points 1 and 2 (upstream and downstream of the jump,respectively) and the specific energy Ec corresponding to the critical depth yc. Then annotate thespecific energy diagram below with the values of y1, y2, yc, E1, E2, and Ec.(d) How much is the head loss in the hydraulic jump? Explain your answer.
A capture well is pumping at a rate of 1700 m^3 /day from a confined aquifer with a hydraulic conductivity of 425 m/day, an initial hydraulic gradient of -0.00098 and a saturated thickness of 22 m. Water is flowing from west to east. a. What is the maximum width of the capture zone in m to the nearest ones place? b. What is the distance from the well to the stagnation point in m to the nearest ones place? Consider what sign makes sense. c. True or False: The majority of the capture zone is to the west of the capture well.
10 In a channel of rectangular cross section with a slope of 1 in 1000, the discharge is to be 1,4 m³/s when the channel is running full. Its depth is half as its breadth. If the channel is roughly excavated, the coefficient of discharge C is 27 in SI units, and the Chezy formula is V = C √(Rs). If the bottom and side slopes are finished smoothly, C = 81 (R = hydraulic radius, s = slope) Assuming the cost of excavation /m³ is twice the cost of smooth finishing /m² Compare the costs of the two types of channels.
A box culvert, as shown in the figure, was designed to carry a discharge (Q m'is) from a square channel. Manning coefficient for channel and culvert is 0.015. The longitudinal slope of channel is 0.0000s. The length of the culvert is 75m, K.- 0.16, and Ke = 1.0. y of soil y, = 1.6 ton/m y of conc. ye- 24 ton/m y of water yw=1.0 ton/m Use 40 ton for L.L If the entrance of culvert is full submerged: - 1. What is the diameter of the culvert (use 1 dig only)? 2. What is the total head loss along the culvert (use 3 digs only)? 3. What is the total load on Top of the culvert (use 2 digs only)? ( Earth Filling 0.2Y
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Q- The wetted perimeter and cross-sectional area of a channel is 5 m and 9 sq. m respectively. What ois the hydraulic radius of the channel?
A stream having a width of 5.4 m carries 16.5 m³/s of flow rate at a velocity of 4.2 m/s Determine: a.) Froude number b.) If the hydraulic jump occurs, what is the depth of water downstream? c.)how much energy was lost or dissipated by the hydraulic jump? Pls show the complete and necessary formula. Thank you. :)
Q3 Figure Q3 shows a flow net for flow through a weir, the base of which is 2m below the ground surface, in a permeable soil layer. Given that the coefficient of permeability = k = 5x103 cm/sec, determine the following: 14 m 7 m 8 m a bc d e' f' 10 m k, = k. = k Impermeable laye Figure Q3 d) The approximate average hydraulic gradient at point f.