Thursday, 18 April 2013

Helicoidal Flow

Helicoidal Flow is the cork-screw like flow of water in a meander.

It is a contributing factor to the formation of sli off slpoes and river cliffs in a meandering section of river. The helicoidal motion of the flow aids the processes of hydraulic action and corrasion on the outside of the meander, and sweeps sediment across the floor of the meander towards the its inside.


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  2. The latest CIE AS and A level syllabus (from 2018) suggestions that we emphasise that helicoidal flow is NOT a corkscrew movement down the center of channel, but a flow across the channel on the surface and at depth.