Lesson plan
Flow splitter
A flow splitter, additionally referred to as a flow divider, is a device in hydraulic engineering designed to break up the flow of water or nappe over a dam wall or weir. This flow can be broken up into differing ratios, which varies depending on the type of flow splitter. 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. They are also used to restrict large flows of stormwater, in situations where a stormwater management device is designed only to treat small storms. 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 drinking water and wastewater treatment plants (sewage treatment or industrial wastewater treatment) to proportion flows to different outlets in a junction box.
Article summary
A flow splitter, additionally referred to as a flow divider, is a device in hydraulic engineering designed to break up the flow of water or nappe over a dam wall or weir. This flow can be broken up into differing ratios, which varies depending on the type of flow splitter. 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. They are also used to restrict large flows of stormwater, in situations where a stormwater management device is designed only to treat small storms. 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 drinking water and wastewater treatment plants (sewage treatment or industrial wastewater treatment) to proportion flows to different outlets in a junction box.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
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