Water flows in a 36-inch-diameter sewer at a rate of 40.0 cfs. Mannings n remains constant...
Water flows in a 36-inch-diameter sewer at a rate of 40.0 cfs. Mannings n remains constant with depth. When the sewer runs 40% full, the velocity is closest to:
Water is flowing full in an 18-inch diameter pipe at a velocity of 8.55 ft/s. Find the discharge, Q, in cfs.
A 36-inch wide trench is to be excavated for a 21-in.-dia. sewer pipe. The depth of the trench is 12 ft in hard tough clay. The ground material is stable and water seepage is not anticipated, nor is shoring required. These conditions will allow a ladder-type trenching machine. Examination of the path reveals obstructions that will reduce the digging speed to about 60% of the theoretical optimum 1 fpm. A crew consists of a worker ($20/hr), three common laborers ($15/hr),...
(6) A horizontal free water jet of diameter D=2" and flow rate Q=0.4 cfs strikes a curved vane such that the jet is deflected up at an angle of =28° to the horizontal by a vane. Assuming the jet velocity does not change calculate the vertical and horizontal forces applied to the vane (ignore the weight of the water).
Water flows in a pipe that has a 4 ft diameter and the following hypothetical velocity distribution: The velocity is maximum at the centerline and decreases linearly with r to a minimum at the pipe wall. If Vmax = 17 ft/s and Vmin = 10 ft/s, what is the discharge in cubic feet per second and in gallons per minute? The volume flow rate is given by the integral of the velocity over the area Using the correct expression for...
Water flows in a pipe that has a 4 ft diameter and the following hypothetical velocity distribution: The velocity is maximum at the centerline and decreases linearly with r to a minimum at the pipe wall. If Vmax = 15 ft/s and Vmin = 12 ft/s, what is the discharge in cubic feet per second and in gallons per minute? The volume flow rate is given by the integral of the velocity over the area Q = -fvaa Using the...
Question 3 (a) Water flows through a horizontal pipeline of constant 400 mm diameter in a water treatment plant. The pipe bends through a 70° angle. In order to design a thrust block for the bend, calculate the magnitude and line of action of the force exerted by the water on the pipe. The discharge through the pipe is 0.4 m/s. The water pressure at the inlet is equivalent to 22 m head of water. [10 marks] (b) Oil of...
L 2. Steady statemass balance: Water is flowing at steady state in a 0.1 meter-diameter pipe with a maximum velocity (turbulent profile) of 0.3 meters/sec. The pipe then goes through an expansion, to where it is then flowing in a 0.5 meter-diameter pipe, and the flow regime has changed from turbulent to laminar. In the second section of pipe, calculate the velocity as (a) block flow profile (Vavg), and (b) maximum velocity in laminar flow profile? HINT: you will need...
Air flows in a 0.50 m diameter pipe at a rate of 15 m/s as shown in Figure 6 Q4 (a) The pipe diameter changes to 1.0 m through a sudden expansion K, Note: For sudden expansion: Assess the pressure rise across this expansion. i. (9 marks) Explain how there can be a pressure rise across the expansion when i there is an energy loss (K, # 0) (2 marks) D2-1.0m Di-0.50 m Q= 15 m/s (1) (2) Figure 6:...
a flow rate = 20ft3/sec flows through a 30-in-diameter concrete pipe 6. (FE Practice problem) A flow rate 20 ft3/sec flows through a 30-in.-diameter concrete pipe (Manning's n constant with depth-0.013). The following data is given: Pipe length 800 ft Pipe invert elevation at upstream end of pipe 275.64 ft Pipe invert elevation at downstream end of pipe 270.96 ft The depth of flow (in.) in the pipe is most nearly: Upstream Invert elevation 275.64 t nvert elevation 270.96 A....