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Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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A 300mm radius sewer pipe is laid on a slope of 0.001 and has a roughness coefficient of 0.012. The depth of water is 3/4 of its diameter. Determine the following:
a) hydraulic radius: ______meter
b) discharge: _______ m3/s
c) boundary shear stress: ________Pa
d) cross-sectional area of flow: _________meter
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- A 20 cm diameter pipe conveys water in turbulent flow regime. The friction factor has been estimated as 0.02 for this flow. If the mean velocity of flow is 4 m/s. Determine the wall stress. Assume Pwater = 1000 kg/m³arrow_forward10.33 Water (10°C) flows through a 25 cm smooth pipe at a rate of 0.05 m³ /s. What is the resistance coefficient f?arrow_forwardholes Water flows through a 100 mm diameter pipe with a velocity of 0.015 m/s. If the kinematic viscosity of water is 1.13× 106 m²/s. The friction factor of the pipe material isarrow_forward
- Repeat Problem 8.12 if the pipe is on a 20° hill. Is the flow up or down the hill? Explain. Problem 8.12 The pressure drop needed to force water through a horizontal 1-in.-diameter pipe is 0.60 psi for every 12-ft length of pipe. Determine the shear stress on the pipe wall. Determine the shear stress at distances 0.3 and 0.5 in. away from the pipe wall. >arrow_forward9.14. Oil of viscosity 0.48 Pa-s and specific gravity 0.90 flows with a mean velocity of 1.5 m/s in a 0.3 m pipeline. Calculate shearing stress and velocity 75 mm from the pipe centerline.arrow_forwarddont use cheggarrow_forward
- A trapezoidal channel, shown in the fig. carries a water discharge of 10 m³/sec uniform flow conditions. The long slope of the channel bed is 0.001. Compute the average shear stress in N/ mm² on the boundary. Also compute Mannings 'n' value (10.0) 4m K10m- 1H 1V (d)arrow_forwardA cast-iron pipe was installed 50 years ago with a measured friction factor, f, of 0.02and surface roughness height, e, of 0.2mm. The horizontal pipe is 1500m long and has a diameter of35cm. Since installation, significant tuberculation has developed on the inside walls of the pipe. A recentpipe test was conducted. The pressure drop across the entire length of pipe was measured to be 200kPa.The design discharge through the pipe has not changed over the years (Q=0.1m 3 /s, T=20°C). Determinethe current effective friction factor, f, and surface roughness, e, after years of tuberculation buildup.arrow_forwardA trapezoidal channel, shown in the fig. carries a water discharge of 10 m³/sec uniform flow conditions. The long slope of the channel bed is 0.001. Compute the average shear stress in N/ mm² on the boundary. Also compute Mannings 'n' value (10.0) 4m K10m- 1H 1V (d)arrow_forward
- Consider the simple pipe network below. Pipe AB and CF are both 500m long withdiameters of 0.8m and friction factors of 0.015. Branch 1 is 200m long, 0.5m in diameter with a frictionfactor of 0.02. Branch 2 is 300m long, 0.6m in diameter with a friction factor of 0.012. The designdischarge through pipe AB is 3m 3 /s. Determine the following: a) the equivalent pipe length, Leq, of asingle equivalent pipe with a diameter of 1m and friction factor of 0.02, that represents the entire pipenetwork from A to F, b) determine the total head loss from A to F. Ignore minor losses. (Hint: need touse method of equivalent pipes for both series and parallel)arrow_forwardA rectangular channel has a depth of 1.2m and a coefficient of roughness of 0.012. The channel is carrying a flow rate of 600 liters per sec. a.What is the width of the channel for a most efficient section? b.What is the velocity of the water flowing in the channel? c.Compute the shear stress at the bottom of the channel.arrow_forwardhelp me plzarrow_forward
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