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Hydraulic Energy Dissipators – A Review
Hydraulic Energy dissipators are devices to protect downstream areas of basin from erosion by reducing the velocity of flow up to an acceptable limit. The stilling basins are transition structures fabricated to dissipate excess energy confined by flow with high velocity at the outlet of conduit or tunnel so that the flow beyond the basin does not threaten the firmness of bed and banks of downstream channel in structures like culvert spillways, canal, etc. from scouring. Henceforth proper attention needed by hydraulic engineers for the design of energy dissipators so as to obtain optimum energy dissipation at outlet. The type of stilling basin most suitable at a particular location mainly depends upon initial velocity of flow and initial Froude Number. This paper describe about the different type of energy dessipators with different appurtanances used in hydraulic structures for protection work.
Keywords
Energy Dissipation, Stilling Basin, Froude Number, Outlet Work, Scouring.
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