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Where does most of the energy loss occur in a Venturi meter, and why is this the case?
(a) Where does most of the energy loss occur in a Venturi meter, and why is this the case? (b) A Venturi meter is…
Month: <span>September 2020</span>
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Explain the hydraulic difference between a small orifice and a large orifice.
The tank in question 5.4 is covered with an airtight lid and the air space above the water is pressurised so that the flow…
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determine the height that the water level in the reservoir must be above the centre of the outlet pipe
A reservoir must discharge to the atmosphere via a short pipeline. The entrance to the pipeline is sharp, and the diameter is 0.3m for…
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how long will it take for the two water levels in the tanks to become equal?
Water flows between two adjacent parts of a vertically sided service reservoir through a submerged 0.3m diameter orifice (CD = 0.60) in a common…
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what should be the dimensions and side slopes of the channel to obtain the maximum discharge?
Water flows down a trapezoidal open channel that has a bottom width B of 4.0m and a water surface width BS of 17.2m when…
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Explain how it is possible for the flow at a particular cross-section in a channel to occur at two significantly different (alternate) depths of flow at the same discharge.
(a) Explain how it is possible for the flow at a particular cross-section in a channel to occur at two significantly different (alternate) depths…
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Determine by how much the depth of flow is increased by the weir at the weir.
A weir built to supply water to an old paper mill raises the water level in the river for some distance upstream. To reduce…
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Compare the chainages at which the upstream depth in the two questions first becomes 1.250m.
Repeat question 8.11 above using the direct step method. Assume that the required change in water level is (3.722 – 1.250) = 2.472m divided…
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Design a single barrel, rectangular culvert that will operate with outlet control, following the general procedure and example given in the text.
The design discharge for a culvert is 13.8m3 /s when the normal depth in the rectangular river channel is 1.9m. The channel has a…
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If a broad crested weir has a coefficient of discharge, C, of 1.65, and if it completely spans a 17.4m wide rectangular channel, what would be the head over the weir when the discharge is 6.8m3 /s?
(a) With respect to a broad crested weir, what is meant by the ‘submergence ratio’ and why is it important? (b) Water flows along…