Flow splitter

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A flow splitter in hydrological engineering is any device designed to break up the flow of water or nappe over dam wall or weir. Flow splitters are used to reduce the likelihood of nappe vibration that might cause the failure of a dam wall by aerating the water flow. Another use for a flow splitter is to again break up the nappe so as to allow fish, such as salmon to swim upstream and over small weirs. Split flow weirs are also used in water and wastewater treatment plants to proportion flows to different outlets in a junction box.

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