Problem 4 isosceles trapezoidal channel of bottom base of width 3 m and sides sloping 1:1 in channel bed sloped at o.006 and lined with materials with n=0.012? Before the jump, the depth of flow is 1m. If a jump can occur, determine the depth of flow after the jump and the energy dissipated in KW if the flow is steady and uniform. Can a hydraulic jump occur in an

Problem 4 isosceles trapezoidal channel of bottom base of width 3 m and sides sloping 1:1 in channel bed sloped at o.006 and lined with materials with n=0.012? Before the jump, the depth of flow is 1m. If a jump can occur, determine the depth of flow after the jump and the energy dissipated in KW if the flow is steady and uniform. Can a hydraulic jump occur in an

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
Water discharging into a 6 m wide rectangular horizontal channel from a sluice gate is observed to have undergone a hydraulic jump. If the flow depth and velocity before the jump are 0.5 m and 8 m/s, respectively, then which of the following statements is/are true? A Flow depth after the jump is 2.31 m. B Hydraulic jump formed is a weak jump. C Efficiency of jump is 65.6%. D Relative energy loss is 0.824.
Water flows at 2 m / s in a 3 m wide 2.5 m deep rectangular channel. There is a 1.10 m elevation on the downstream side of the channel as seen in the figure. Above the elevation, the channel widens to 3.75 m as shown in the figure If b2 = 3.75 m, what should be the maximum value of Δz to prevent suffocation? Draw the specific energy depth curve.
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 vertical cylindrical tank, 2 m diameter has, at the bottom, a 5 cm diameter, sharp-edged orifice, for which C_{d} = 0.6 Water enters the tank at a constant rate of 9 l/sec. At what depth above the orifice will the level in the tank become steady?
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A dam releases water into a spillway, and then some distance downstream a hydraulic jump occurs. The dam height is 25 m, the initial depth in the spillway is 1 m, and the hydraulic jump leads to a region of depth 15 m. Upstream of the dam may be considered a reservoir. Determine the average velocity before the jump and whether the jump will occur. If there will be a jump, determine the velocity after the hydraulic jump, neglecting any friction losses.
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