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Laminar Flow Fan plate

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qboney
qboney
almost 10 years
Thank you Jelle. I was looking for a way to proof out the pressure and flow, so i bought an anemometer and a manometer. So far results are looking good, and the design is changing with further tests.
Jelle_just_me
Jelle_just_me
almost 10 years
did you notice that they cheat in their video? Their 'small hole to simulate restricted airflow' is not what these axial fans are designed for. It is no wonder that all these fans have little output: they are all stalled!. Have a proper intake opening and you might not see the smoke at all; it is blown out too fast. Their gizmo does probably work in that it converts the fan in a radial fan of some sorts. It will function, but not as good as a radial fan designed for the job, or a axial fan in its correct operating condition. Most 'fan ducts' here abuse axial fans by restricting the outflow opening too much. This thingy might help these fans work a little better. A cover plate for the other side that has an opening about as large as the central hub (to restrict air escaping from the high pressure outer ring) may help too.

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Fan duct fan flow plate laminar flow pressure

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