If the actual operating head on an ogee spillway exceeds its design head, then:

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Physics · Fluid Mechanics

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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The pressure on the crest will become negative (sub-atmospheric), potentially causing cavitation

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Answer 1

The discharge coefficient of the spillway will decrease significantly

Answer 2

The pressure on the crest will increase positively

Answer 3

The pressure on the crest will become negative (sub-atmospheric), potentially causing cavitation

Answer 4

The pressure on the crest will be static atmospheric

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