Quick and easy Wind Tunnel in 1 hour

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n27sb

N27SB
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I decided to go ahead and whip up a small wind tunnel to test stability on new designs. I usually use Rocksim and it predicts well but it feels better to do a real world test.
I built this today using just materials from my shop. It is a simple low velocity tunnel. I did not want something bulky to store.
IMG_7617.JPG
 

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Handeman

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pretty cool.

What air speed you get?

Does the fan draw air? I'm thinking blowing the air would be more efficient, but that's a WAG.
 

n27sb

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Maybe 18 kts or so. Plenty to check stability or flow.
The fan draws, easier to get smooth flow.
 

dhbarr

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It is my intent to have a combination curing oven / wind tunnel once the shop is more complete -- this lets me know that even if I'm crazy, I'm not alone!
 

5x7

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Note tubes at the receiving end that act as flow straighteners also. Very Nice!
 

KenECoyote

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I was thinking of making one myself for some of my experimental designs that rely on high speed wind flow for stability...not easy stuff to test at club launches. 😉
 
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