+1 vote
in Irrigation Engineering by (75.2k points)
Which of the following statement is not correct about sediment load phenomenon and its measurement?

(a) The material is kept in suspension by the turbulence or by the generation of eddies

(b) In laminar flow, the shear stress is caused due to the difference of the velocities at the top and the bottom

(c) In turbulent flow, momentum transfer is not very significant

(d) Due to the formation of eddies, the sediment transfer from high concentration  regions to the low concentration regions takes place

I got this question during a job interview.

My doubt is from Sediment Transport in chapter Sediment Transport and Irrigation Channels Design of Irrigation Engineering

1 Answer

0 votes
by (106k points)
The correct option is (c) In turbulent flow, momentum transfer is not very significant

The best I can explain: In turbulent flow, momentum transfer or mass exchange takes place due to the jumping of particles from higher velocity region to lower velocity region. Due to this transfer of momentum between two adjacent fluid layers, effective shear stress is caused at the interface between the layers.

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