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Which of the following entrance of the sluiceway...

Which of the following entrance of the sluiceway is most superior?

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+1 vote

asked Nov 9, 2023 in Irrigation Engineering by Carter (75.2k points)

Which of the following entrance of the sluiceway is most superior?

(a) A square-edged entrance

(b) A Bell-mouthed entrance

(c) A rectangular entrance

(d) A circular entrance

This question was posed to me in an online interview.

This is a very interesting question from Dam Outlet in portion Pressure Conduits, Outlet Works through Dams and Rivers of Irrigation Engineering

irrigation engineering
pressure conduits
outlet works through dams and rivers
dam outlet

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1 Answer

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answered Nov 16, 2023 by Greg (106k points)

The correct option is (b) A Bell-mouthed entrance

Explanation: As compared to Bell-mouthed or other entrance, a square edge entrance is likely to cause more separation of flow and more danger of consequent cavitation. The shape of the bell-mouthed entrance is generally elliptical and the extra cost involved I shaping this entrance is usually justified except for small projects under low heads.

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