A Review: Effect of Turbidity Current on the Reservoir Sedimentation

Reservoir is frequently vulnerable through damage of capacity owing towards sedimentation. Sedimentation is an inherent procedure in the reservoir. A continuous sediment deposition, which is being transported by the alluvial rivers in the reservoir cannot be fully eradicated rather it can be controlled. Nowadays, reservoir sedimentation is a burning problem, especially in India. For the sustainability of this massive structure (reservoirs) various measures are taken into account. If the sediment inflow is larger than that of the sediment outflow, the effective life of the reservoir is shortened. Turbidity currents generated in the reservoirs play a significant role in the reservoir sedimentation. The term turbidity current is a natural phenomenon which is frequently undecided besides the sediment support appliance (e.g. settling, turbulence, etc.) may be operated simultaneously within a sediment-gravity flow. The turbidity current is the utmost stereotypically a submerged current of typically quickly moving, downhill flow of water produced through the increased density for the high quantities of sediment. It is also responsible for disturbing the vast amounts of sediments in the deepwater. If the turbidity current increases in water, the aforementioned converts thicker besides a smaller amount of flawless for the higher concentration. Because of sedimentation, the yearly loss rate of the storage capacity of reservoir is estimated as 1–2% of the total storage capacity of the reservoir. This paper focuses on an extensive study of the literature and analysed and compared the results of the previous studies on turbidity current of the reservoir sedimentation. It is found that venting of the turbidity current that reaches in the dam is economical as well as beneficial as per the present scenario of the various reservoirs which are facing the sedimentation in it.