Influence of sediment grain protrusion on the movability number
by Aamer Majid Bhat; Manzoor Ahmad Ahanger
International Journal of Hydrology Science and Technology (IJHST), Vol. 14, No. 2, 2022

Abstract: Grain protrusion, an important characteristic of non-flat sediment beds, is a measure of the exposure of a sediment particle to the streamflow. It is an important determinant of the threshold of sediment motion and hence its transport. Its effect on the Shields parameter has already been examined. This research focuses on the movability number, a parameter of the threshold of the sediment motion, for which previous studies have not considered protrusion. Experimental data of some previous researchers is used. The results show the profound impact that grain protrusion has on the movability number. The general variation of the critical movability number with the grain protrusion is similar to that of the critical Shields parameter.

Online publication date: Thu, 28-Jul-2022

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