2.Water exits a reservoir through a 1-Km long D=?mm diameter horizontal Tunnel as shown below. The entrance is sharp-edged, and the discharge is to the lower reservoir. If the flow rate is 2 CMS, What tunnel diameter is required to achieve the desired flow rate if local losses are neglected? Upper reservoir Tunnel = 1 km 23 m Lower reservoir

2.Water exits a reservoir through a 1-Km long D=?mm diameter horizontal Tunnel as shown below. The entrance is sharp-edged, and the discharge is to the lower reservoir. If the flow rate is 2 CMS, What tunnel diameter is required to achieve the desired flow rate if local losses are neglected? Upper reservoir Tunnel = 1 km 23 m Lower reservoir

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Group work Example Two reservoirs with a difference in water levels of 180 m and are connected by a 64 km long pipe of 600 mm diameter and f of 0.015. Determine the discharge through the pipe. In order to increase this discharge by 50%, another pipe of the same diameter is to be laid from the lower reservoir for part of the length and connected to the first pipe (see figure below). Determine the length of additional pipe required. =180m QNI 2
3. Water is moving between two reservoirs at a flow rate of 0.08 m³/s via the pipes shown in the diagram (D₁ = 10 cm, D₂ = 20 cm). Assume both pipes have a roughness ks = 0.08 mm. If the difference in water surface elevation between the two reservoirs is 70 m and L₁ = 50 m, what is the length of the larger pipe (L2)? Further, what is the entrance length of pipe 1? For what fraction of the length of pipe 1 is flow fully developed? Include form losses due to pipe components (entrance, expansion, and exit) in your calculations. For more info on component losses, use Table 10.5 and 0 = 180°. Water T = 20°C D₁ D₂ 1₂2.
A new steel pipe (f= 0.02) of 7000m length and 600mm diameter connects two reservoirs as shown. Including all losses, design the water level elevation in reservoir A such that the required flow rate of 0.5m³/s is achieved. Draw the EGL and HGL. %3D ma eyad Tarawneh z= ??? AMSL A z = 650 AMSL В V
2. Three reservoirs A, B, and C are connected respectively with pipes 1, 2, and 3 joining at a common junction P. Reservoir A is at elevation 80 m, reservoir B at elevation 70 m and reservoir C is at elevation 60 m. The properties of each pipe are as follows: Pipe 1: L = 5000 m, D = 300 mm Pipe 2: L = 4000 m, D = 250 mm Pipe 3: L = 3500 m %3D The flow from reservoir A to junction P is 0.045 m3/s and f for all pipes is 0.018. (a) Find the elevation of the energy grade line at P in m (b) Determine the flow on pipe 2 in m3/s (c) Compute the diameter appropriate for pipe 3 in mm
Problem P64 Extending the previous problem. The same two pipes connect two reservoirs as shown on the figure. 100 m Ans: z = 79.337 m Pipe #1 L = 5000 m D 800 mm C = 120 Pipe #2 L = 3500 m D = 1500 mm C = 80 B Determine the elevation of the free surface in Tank B if the total discharge into Tank B is 5.00 m³/s. Adopt a non-iterative approach when solving this problem. Neglect all local losses
A reservoir discharges through a sluice 0.915 m wide by 1.22 m deep. The top of the opening is 0.61 m below the water level in the reservoir and the downstream water level is below the bottom of the opening. Calculate (a) the discharge through the opening if Cd= 0.60 and (b) percentage error if the opening is treated as a small orifice.
1. The three reservoirs shown below are connected by commercial steel pipe (e=0.045mm.). Determine the flow rate in each pipe, assuming fully turbulent flow. Neglect minor losses. clev, 80 B 4000 m 1.2 m J (elev, 0) 8'09 000€ elev. 100 A ļ 5000 m 0.6 m elev. 70 C ļ
Three reservoirs A,B,C are interconnected as shown in figure. The elevations of free surface in reservoir A and are ZA= 100 m and ZB = 90 m. The pipe details are as followings Pipe Discharge Modulus K 1 0,6 m³/s 2 0,5 m³/s If the flowrate in pipe 1 is Q₁ = 80 liter/s from reservoir A to J. Neglecting the local losses, flowrate in pipe 3 is ZA Length 1500 m 2000 m a. 104,2 liter/s Ob. 74,5 liter/s O c. 115,8 liter/s d. 90,4 liter/s e. 125,6 liter/s A J ZB B
Three reservoirs A, B and C whose water surface elevations are 60ft, 50ft and 32 ft respectively, are interconnected by a pipe system with a common junction at elevation 35ft. All pipes have a frictional factor of 0.020 and are as described as follows 1. Illustrate the problem 2. What is the direction of flow into reservoir B? 3. Determine the flow from reservoir B in ft^3/s. Indicate if it is Toward or away from junction D. 4. Determine the flow from reservoir C in ft^3/s. Indicate if it is Toward or away from junction D.
Situation 3: Three pipes of different lengths and diameters connected in series as shown discharge 0.160 m'/s. Determine the difference in elevation between the two reservoirs. Neglect minor losses. H What will be the diameter of a single pipe that can replace all the three Pipe1 Pipe 2 Pipe 3 pipes? It shoud carry the same discharge and incur the same total head loss. Assume that the distance between reservoir is constant. L- 800 m D- 45 cm f- 0.012 L-1500 m L- 1800m D- 90 cm D- 60 cm 1-0.012 f-0.012
Problem 5 Consider a three-reservoir problem with the following characteristics. L₁ = 95 m L₂ = 125 m L3 = 180 m Z₁ = 25 m Z₂ = 115 m z3 = 85 m (a) All three pipes are constructed of 28 cm, unfinished concrete (e = 1 mm). If water at 20 ºC flows through the pipes, compute the steady flow rate in each pipe (magnitude and direction). (b) Reduce the diameter of all the pipe to 15 cm, unfinished concrete (€ = 1 mm) and show that the flow rates distribute in nearly the same manner but are about 5.2 times lower. Explain why.
Q4. For the dam shown in Figure 4 (next page): a). b). c). d). Draw the flow net. Use four flow channels. Compute the flow rate under the dam per meter width if the coefficient of permeability is 8 x 10-4 cm/s. Calculate the PWP at points A, B, C, D, E, F and G, evenly spaced at 4.0 m. Plot the PWP distribution at the base of the dam and determine the resultant uplift force per meter width.