- When I was a kid, my friend's dad was an engineer at Grumman, and he took us to see a test in their supersonic wind tunnel. The most prominent memory, is how unbelievably loud it was, and the next most prominent memory was that all the engineers were jealous of Lockheed, who had a much better wind tunnel that could run for much longer tests.
- In 2014 I went to the open house event that NASA Ames had in honor of their 75th anniversary. They had the giant 80 by 120 foot wind tunnel open for viewing from the outside and I had a very hard time comprehending the visual size of it because the only scale references I had were the square lights on the ceiling. It was an experience that stuck with me. A few years prior I lived in Sunnyvale and even several miles away you could tell when it was operating because of the low rumble of sound.
- I discovered a few years ago that a such a wind tunnel facility existed in my area (France), but at a smaller scale. I had the opportunity to visit it. The facility is about 100 years old. What amazed me is not just the facilities (they have various tunnels for different measurements), but how it adapted to customer usages through time as engineering needs evolve. One building was initially designed for seaplanes but has long ago been refurbished for other uses. Another one is used by the French cycling team which has headquarters nearby.
https://iat.cnam.fr/les-souffleries-1224762.kjsp
- The NASA Langley stability wind tunnel [0] is now part of Randolph Hall at Virginia Tech. You can visit it in Blacksburg, VA. Beautiful campus, btw. The stability tunnel is the biggest, they also have smaller hypersonic tunnels and
I worked there as a work-study student. Part of the job was wiping down the tunnel chamber after their test runs. The smoke you see used in wind tunnel videos is not actually smoke, but a white oil. And for a FWS job the pay wasn't bad, had to put on a bunny suit and crawl around tight spaces, LOL.
[0] https://en.wikipedia.org/wiki/Virginia_Tech_Stability_Wind_T...
- https://www.theatlantic.com/photo/2018/05/historic-photos-of...
Magnetically levitating the model in the tunnel and measuring the forces by measuring how the magnets need to be driven to keep the model in place is pretty cool.
by trebligdivad
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- The 1937 construction picture with the horses is a great contrast of technologies.
- More from Langley:
https://www.cnet.com/pictures/photos-langley-test-tunnel-get...
https://www.nasa.gov/wp-content/uploads/2023/03/328830main_E...
https://www.nasa.gov/wp-content/uploads/2017/07/hl-10-el-199...
https://www.nasa.gov/wp-content/uploads/2023/03/146749main_i...
by arlattimore
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- Those photos are absolutely amazing, what a stunning demonstration of innovation!
by dsrtslnd23
6 subcomments
- With all the technological advances, why are wind tunnels still widely in use today (instead of pure computational approaches)?
- > In 1920, the National Advisory Committee for Aeronautics (NACA) completed its first wind-tunnel facility, a copy of an existing British tunnel.
This is a reminder that nobody starts at the top. They usually start by copying a lot of what those at the top do, as a shortcut to getting there.
- Reminds me of the old construction photos for nuclear reactors in the US. Astoundingly complex machines at a massive scale getting out together at what now feels like impossible speed. I can't help but feel like a Roman 100 years after the fall staring up at aqueducts wondering how anyone every built such a thing.
I'm positive someone could show me an impressive thing we built recently. I don't feel like that is my point. Im just astounded those people in that time could build what they built with the tools they had as fast as they did.
by irthomasthomas
0 subcomment
- Incredible photography.
by coreyh14444
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- Imagine what Adrian Newey could have done in there...
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