Water flow multiplier, like a bladeless fan? - Filtration - Aquatic Plant Central

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Old 04-16-2017, 12:52 PM   #1 (permalink)
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Default Water flow multiplier, like a bladeless fan?

Has anyone come across a use of this "air multiplier" principle (as seen in Dyson bladeless fans) for water flow?

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Old 04-17-2017, 10:04 AM   #2 (permalink)
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Default Re: Water flow multiplier, like a bladeless fan?

That would be a cool invention, I have seen those fans your talking about. they sell them at best buy, really neat but man they are expensive for a fan.
If this was brought to the aquatic world it would be a money maker, that's for sure.
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Old Yesterday, 12:28 AM   #3 (permalink)
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Default Re: Water flow multiplier, like a bladeless fan?

Sorry to burst your bubble, but that graphic is very misleading; no doubtably made by the Dyson marketing team because they spent $75 million developing that fan.

Firstly, the bladeless fan is a misnomer because it actually has blades. Just not visible ones, there's a traditional fan in the base that blows air into the circular ring part. This is the majority of the air you feel coming off it. The picture doesn't show this and exaggerates the rest.

And for your idea, it wouldn't work. The bladeless fan kinda makes a vortex that pulls some air along with it. Water has too much drag and doesn't move like that efficiently. As an analogy, you can move water with a fan just as easily as you can swim through air.

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