Calculate the Manning’s rugosity coefficient in a coarse alluvium gravel with D-75 size of 5 cm.

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Calculate the Manning’s rugosity coefficient in a coarse alluvium gravel with D-75 size of 5 cm.

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Greg · Answer 1 · 2023-07-31T17:57:00+0000

Correct answer is (a) 0.025 m

Easy explanation: The strickler’s formula is n = d^1/6/24 where d = 0.05 m.

n = 0.05^1/6/24 = 0.025 m.

Calculate the Manning’s rugosity coefficient in a coarse alluvium gravel with D-75 size of 5 cm.

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