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Old Sep 17, 2012, 02:24 PM
hannibal1492 is offline
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Question

Wind Tunnel


Hey everyone,
I have been contracted the build a wind tunnel for my old high school and I don't know where to begin. I was thinking about using an electric motor from a model airplane but I am new to them so I don't know how to go about picking one out. In a perfect world I would need the air to go around 200mph through the tunnel, but to be honest I think I can get away with 50mph. In addition I was thinking about using a 12 inch prop due to the fact that the inside of the wind tunnel is 12", is this the right thinking or should I use a smaller prop and allow the air to move out to fill the volume? Any help would be much appreciated.
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Old Sep 17, 2012, 02:30 PM
dedStik is online now
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Redacted per NSA "suggestion"
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Try having a look at some other designs.

https://www.google.com/search?q=wind...w=1680&bih=886
Old Sep 17, 2012, 03:17 PM
nicoyenny is offline
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Use a leaf blower motor and an AC drive to regulate the motor speed, not really too complex.
For the tube you can use a piece of clear pipe, the hardest part will be finding the inlet bell ...
Old Sep 17, 2012, 03:47 PM
eflightray is online now
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An itch?. Scratch build.
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Also remember to 'suck' the air through the wind tunnel, it give cleaner air flow. Blowing air into a wind tunnel with a prop will give horrible turbulence.


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