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Whose equation was the first on the rate of bed load transport?

(a) DU-Bois empirical formula

(b) Shield’s formula

(c) Meyer-Peter’s formula

(d) Einstein’s formula

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I'd like to ask this question from Sediment Transport topic in chapter Sediment Transport and Irrigation Channels Design of Irrigation Engineering

1 Answer

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by (106k points)
Right option is (a) DU-Bois empirical formula

Best explanation: The first equation was proposed by DU-Bois on the rate of bedload transport. He assumed that the bed load transportation rate was proportional to the excess of existing tractive force over the critical value required to initiate the movement.

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