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I want to build a wind tunnel about 4'x4'x20'...any suggestions or plans?
How fast do you need it to go, and what are you using it for?
When we get ours unpacked (probably in a couple of weeks) I can do some photographs of our wind tunnel. It's not that large (ours is about 18" in diameter for the tunnel, itself, and about 3 feet long)., but might give you some ideas. Would that help at all?
Apogee has a video on building a windtunnel. Smaller but you mak get some ideas.
20ft long? That is a big wind tunnel to have at home.I want to build a wind tunnel about 4'x4'x20'...any suggestions or plans?
I want to build a wind tunnel about 4'x4'x20'...any suggestions or plans?
Thank youWhat characteristic are your trying to measure? What speed do you want to do the measurement at?
For larger rockets, if it's a standard-looking design, you can estimate drag and stability using simulation software. If it's a non-standard design, make a smaller scale model to swing test and/or test fly.
It's expensive and impractical to build an effective large windtunnel for personal use.
-John
20ft long? That is a big wind tunnel to have at home.
Also, before you start building, check the power requirements. Something tells me you will need one big motor to supply the wind for something this size. Not to mention a big (or multiple small ) propellers.
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