aQB 4.1. Proof the critical flow equation for constant specific energy:
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- Question 4 A nearly horizontal rectangular section with a width of 25 feet carries 1500 cfs. There is a contraction in the channel of 10 feet. If the depth at the contraction is critical determine the upstream channel depth in feet. Do not include the units in the solution and round to the tenths digit. D Question 5 Assume you have the channel reach shown that is mild (dn>dc); calculate the upstream and downstream depths of the hydraulic jump (note there is a hydraulic jump because upstream there is a gate controlling the water to below critical. Also determine the length of the hydraulic jump. The flow rate in the channel is 1500 cfs, , the base width is 25 ft and the normal depth is 10 feet. upstream depth - ft downstream depth = ft length of jump = ft Round all you answers to the hundredths digit and do not include units in the solutions and on your scratch paper provide a sketch of the channel in profile view. please answer both, will upvotektop/New%20folder/Hydraulics/HYDRAULICS.pdf +の EXAMPLE 1: Determine the normal discharge for the channel shown in Fig 2.7a. The water surface in the left flood plain is 42m wide and that in the right flood plain is 26m. The manning roughness value for the flood plain is 0.10, while the Manning roughness value for the channel is 0.05 for the channel. The longitudinal slope of the channel is 0.0005. Solution: n-0,10 n-0,05 n;-0,10 2m 2m 5m 5m 112m 30m 15m 16m 10m 12m 12m Fig 2.7 a 5:16 PM 6 18 2021Discharge in a concrete channel with bottom width of 3m is 10 cumecs. Bed slope of a given channel is equal to 1 in abc. Where, “abc” is the last three digits of your registration number. Find the normal, critical and hydraulic depths of flow if: 1. the channel has vertical sides2. the channel is trapezoidal with 3H:2V3. the channel is triangular with apex angle equal to 1000 Course: Hydraulics
- Plz, solve the two parts of this question. Hydraulics. Reg.No: 5395 Question. a). A lined rectangular channel (n = 0.015) has a flow depth of 2m and a bed slope of 1 in 1600. Width of a channel is equal to the last digit of your registration number in meters. Retaining the rectangular shape and same total perimeter of a lining, DISCOVER the change in discharge for a most efficient x-section of a channel, if the bed slope, channel width and manning’s n remain same. b).DISCUSS the critical depth, normal depth and hydraulic depth of flow for subcritical and supercritical flow in open channel.28. Water flows at 15 ft³/s through a 6 ft wide rectangular channel as shown in the figure. The upstream epth of flow (y₁) is 1 ft and the downstream depth of flow (y2) is 1.5 ft. Is the flow upstream subcritical supercritical? Determine if a hydraulic jump will form. Show steps. NO 1 1 ftPlz, solve the parts of this question. Hydraulics. My Reg.No: 5395 Question # 02:a). The flow rate in a long rectangular channel (n = 0.014) is equal to the last three digits of your registration number in cubic feet per second. The channel is 12ft wide and there is an abrupt change in slope from 0.0019 to 0.018. PLOT a figure showing normal depths, critical depths and water surface profiles? b).Using Rayleigh’s procedure, PRODUCE an expression for the discharge over a spillway (Q) which is a function of head above spillway (H), height of spillway (h), velocity of flow (V) and acceleration due to gravity (g)?
- Question- OCF A rectangular channel carrying a super critical flow is to be provided with a hydraulic jump type of energy dissipator. Energy loss required in the hydraulic jump is 8 m and inlet Froude number is √6. The initial sequent depth is?Water flows at a depth of y1=0.4ft in a concrete channel which is 10ft wide. The discharge per unit width is 10ft2/sec. Estimate the height of the hydraulic jump that will be formed if bed slope is equal to 0.0 and 0.15 respectively.Read the question carefully and give me both a&b right solutions. A 1.3-m wide rectangular channel with a bed slope of 0.00019 has a depth of flow of 0.8m. Manning’s roughness coefficient is 0.017. (a) Can Manning’s equation be applied to this system (i.e., is the flow fully turbulent)? (b) Regardless of the answer to part a, determine the steady uniform discharge in the channel.
- 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…A) what is the number of drop of the flownet? B) What is the flow of water in the unit of cm^2/min? C) What is the water pressure, u, at point A? (Assume the water unit is 10 kN/m^3) D) What is the total head at point B/ E) What is the water pressure at point B? (Assume the water unit is 10 kN/m^3)b) While computing the bending moment and the shear force on the side walls of the spillway chute showed in Figure 1, a structural engineer assumed that the water pressure varies linearly from zero at the free surface to pgy at the invert of the chute, in which y flow depth measured vertically. What are the computed values for the bending moment and shear force at the invert level? Are the computed results correct? If not, compute the percentage of error. Side wall Water surface 50 m Section:A-A 30 Figure 1: Spillway Chute