Sand Sweep: Siting a Flow Diversion to Minimize/Maximize Bed-Load Diversion

If you are planning to divert water from a bend, particularly with a diversion channel at the same bed elevation as the main channel, you will divert more bed load depending on whether you site it on the outside or inside of the bend. This video explains why.

[@shawnmayr3388]

"Helical flow is putting it there." Yes! We like to put diversions in deep and stable places so yeah physics!

[@lamiaeel1053]

I have a problem on HEC ras,i working on unsteady flow of river, so when I am on the cross section step I find that the elevation corresponds to points of equal distance zero, can you tell me how I should solve the problem