Example 10.8 Hydraulic JumpWater on the horizontal apron of the 30 m -wide spillway shown inFig. E10.8a has a depth of 0.2 m and a velocity of 6 m/s . Determinethe depth, y,, after the jump, the Froude numbers before and afterthe jump, Fr, and Fr,, and head loss (ht)due to jumpb= width = 30 mSpillway apronQi=Q2:V1FriV2Fr2 :VgyiV1 = 6 m/sgy2Y1 = 0.2 mDownstreamУ2-1+ y1+8F2hi -1- Y2FiУ1У1У1У1У2

Answered: Example 10.8 Hydraulic Jump Water on…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A 4-ft-diameter finished-concrete sewer pipe is half full ofwater. (a) In the spirit of Fig. estimate the speed ofpropagation of a small-amplitude wave propagating alongthe channel. (b) If the water is flowing at 14,000 gal/min,calculate the Froude number.
Please give me right solution... Please remember I want correct solution A rectangular weir having a length of one meter is constructed at one end of a tank having a square section 20 x 20m and a height 10m. If the initial head on the weir is 1m, determine the time required to discharge a volume of 72 cu.m.
A sharp-crested triangular weir with a notch angle of 80° is used to measure the discharge rate of water from a large lake into a spillway. If a weir with half the notch angle (? = 40°) is used instead, determine the percent reduction in the flow rate. Assume the water depth in the lake and the weir discharge coefficient remain unchanged.
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Water discharging into a 10-m-wide rectangular horizontal channel from a sluice gate is observed to have undergone a hydraulic jump. The flow depth and velocity before the jump are 0.8 m and 7 m/s, respectively. Determine (a) the flow depth and the Froude number after the jump, (b) the head loss and the energy dissipation ratio, and (c) the wasted power production potential due to the hydraulic jump
Q#1(a) :A rectangular tank of surface area 5m×5m contains water upto a depth of 4m. There is an orifice on the base of the tank of diameter 50mm. In how much time The level of water will fall to the depth of 2m The tank will completely empty Take Cd= 0.62 (b) What is a “Cippoletti weir” ?Prove that the side slope of a Cippoletti weir is 1:4. (c) What is meant by “Hydraulic coefficient”? Explain different types of hydraulic coefficients.
The bottom slope of a hydraulically optimum rectangular duct is 0.045 and the Manning friction coefficient is 0.025. If the height of the hydraulic jump formed in this channel is H = 3.5m; How many meters (m) are the energy losses due to the hydraulic jump?
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A channel has a slope of 0.0004 m/m with n=0.015. It is expected that the channel will be able to carry a flow rate of 50 m3/s. Determine the normal depth, critical depth, critical slope,hydraulic radius, top width, velocity head, specific energy and the state of flow if the channel section is trapezoidal and its base width is 3.056 m. The side walls make an angle of 45 with horizontal level. Take ρ=1000 kg/m3 and g = 9.81 m/s2 Froude Number is estimated from F(r^2)=(V^2)T/g(A^3)
In flowing from section (1) to section (2) along a rectangular open channel, the water depth decreases by a factor of three and the Froude number changes from a subcritical value of 0.7 to a supercritical value of 3.4. Determine the channel width at (2) if it is 8 ft. wide at section (1). Assume stead-state flow.
A circular jet of water impinges on a flat plate as shown in Figure P10.49. The water spreads out equally in all directions and at station 1, the flow is essentially uniform over the depth Y1. The jet exit velocity V is 10 m/s and the exit diameter D is 10 mm. If you are given that R = 8D, and Y1 = D/4 (a) Find the Froude number of the flow at station 1. (b) If you are given that a circular hydraulic jump forms near station 1, estimate the depth of water after the hydraulic jump using the one-dimensional hydraulic jump relationship. Under what conditions will the accuracy of this estimate improve?

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