State the design principles of a Side channel Spillway. State the normal and commonly used procedure while calibrating an ogee spillway in SA.How the capacity of a spillway is estimated?
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- A 1M DIAMETER PIPE HAS A DISCHARGE OF 0.7 M*3/SEC FIND THE CRITICAL DEPTH OF FLOWBriefly discuss the design of an open channel section, such that the flow at any depth in the channel will have a constant velocity for sewer discharge.4. To monitor turbidity and chloride concentrations of incoming flow, an engineer designed a transfer pipeline with several in-line measuring devices at segment "“B" (see figure below). Specifications from the manufacturer recommends that to protect the optical sensor of the most sensitive instrument, the operating velocity may not exceed 13 m/s or fall below 8 m/s. What size(s) pipeline would you propose for segment “B" if the peak-flow is 9.5 MGD? 24" dia. 18" dia. C
- Given the data below, design a section of sanitary sewer to carry these flows at a minimum velocity of 2.5 fps. Assume that the minimum depth of the sewer below the street must be 8.5ft and that an n value of 0.013 is applicable. Sketch a profile drawing. (Note: The invert into manhole F must be 937 ft. Assume an invert drop of 0.2 ft across each manhole regardless of possible sewer diameter changes at each manhole, i.e., sewer pipes would not be connected crown-to-crown.) Assume that 8, 10, 12, 15, 18, 21-inch diameter pipes are commercially available.Water moves at a speed of 6 feet per second through an 8-inch steel pipe. The pipe splits into two sections downstream: an 8-inch main and a 2-in-bypass. The bypass is 22 feet long, whereas the 8-inch pipe in the bypassed part is 16 feet long. What percentage of total water flow travels through the bypass when the entrance exit is ignored?What diameter of a standard, sharp-edge orifice will be required to produce a discharge of 1.25 cfs of water under a head of 11 ft?
- Proof that the Reynold’s number for pipe flow is four times that of open channel flow.Diagram of the problem, necessary formulas, clearance and numerical solution What cross section must a pipe have if 0.065 m3/s of water passes through it, moving with a speed of 1.53 m/s? What should be its diameter?answer the following: a. rate of flow b. velocity of flow after the spillway c. horizontal reaction on the spillway per meter width
- Q1: Classify the following open-channel flow situation: (e)Flow over a spillway (f)Sudden opening of a sluice gateQuestion 14 Direction: Choose A - When both statements are true; B - When both statements are false; C- When the first statement is true and the second statement is false; D - When the first statement is false and the second statement is true. First Statement: Short intense rainstorms can produce rapid overland flow and steep rising limb Second Statement: A rectangular channel is most efficient when the flow depth is twice the flow width. A B.Water is flowing in Four side-by-side pipes. The discharge through each pipe is 1.2 m³/sec and the water depth in each pipe is 0.609D. The Manning's n and the bed slope of each pipe are 0.016 and (1:1000), respectively. After the development, the total discharge is expected to increase by 13%, and the engineers have decided to replace the Four pipes by a trapezoidal channel. The new channel with a non- cohesive material having a particle size of 0.61 mm with the same bed slope of the pipes. Assume the channel bed width is twice the water depth, and the side angle of the channel is 60°. 1- Determine the diameter of the pipes. 2- Design the cross section of the new channel and what are your comments and suggestions about the hydraulic flow in the designed channel? 3- If a hump is placed in the bottom of the designed channel, Estimate the hump height which will cause the crest flow to be critical.