ISEN-ASTC-L is a service of the Association of Science-Technology Centers
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I love this discussion and am happy to see other science centers with wind tunnels.  We just got ours and have yet to program with it on our gallery floors. I'd love to hear how those with wind tunnels are using them. What types of programs do you do?  What works the best?  Right now we are going to start simple and have the kids make various designs of paper airplanes. They can experiment with how much velocity is need to get their design to fly, what modifications are need to make their plane turn and measure the amount force pressure on each design. Does anyone inject smoke into their machine?  We are having some difficulty getting a thick enough smoke stream to show airflow over a wing and separation at high angles of attack!

Thanks,

Jason

-----Original Message-----
From: Informal Science Education Network [mailto:[log in to unmask]] On Behalf Of Anna Grace at Explorit
Sent: Thursday, June 18, 2009 5:50 PM
To: [log in to unmask]
Subject: Wind tunnel shapes

ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************

I hope someone can help.

We have a small wind tunnel with shapes that fit on a sled in the
test section.  We have used styrofoam for the shapes, but they don't
last very long.  We tried coating the styrofoam with foam coat, which
helped extend their life, but they are still getting really beat up.
I was wondering if anyone else has a similar exhibit or any
suggestion on what material we can use for durable, lightweight
shapes.  Does balsa wood hold up?

Thanks,
Anna

Anna Grace
Exhibit Coordinator
[log in to unmask]

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