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NASA Ames Research To Close Largest Windtunnels
Makarand writes "The world's largest and second largest
wind tunnels operated by the
NASA Ames Research center
will be shutdown after 60 years
and may remain shut unless major defense contracts from
the Pentagon or the private sectors are available.
The largest windtunnel will be fired up for the last time in June for four hours.
It will test the parachutes that will land the Mars exploration rovers onto the Red Planet
next year.
Fewer defense contracts and the increasing use of computer simulations are being cited as reasons
for the windtunnels to face closure."
That really blows. No, really.
Im dreaming ofa big bndwdth, That can resist the
I bet they could find a way to make a pretty cool amusement ride out of it.
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Super computers are great for this sort of research. But I'm surprised that large wind tunnels aren't still needed. The space gained by scrapping the tunnels will be taken up again by climate controlled rooms to house expensive super computers. You'd think that there would be needs where only the largest wind tunnels would do. I guess not any more.
Yeah, I can see how people aren't happy about this. We lose something that can be used under short notice if they're mothballed. We reduce the number of jobs. However, I won't go so far as to call this bad. We aren't likely to forget the technology that goes into these systems, and we can always build them again. If they only mothball them, they might be able to be refurbished and opened again, similar to how the US Navy's Battleship fleet was brought back into service for a time. If they raze them, it won't be as easy, but it'll still be possible.
I'm just glad that the kind of world that built them isn't here. Not that widespread fear of terrorism, suspension of civil rights without public outcry, and widespread imperialism are good, but at least we're unlikely to see the kind of war that ravages an entire continent for a decade, or at least not ours.
Note: I wrote this at almost three in the morning, so if it's a bunch of crap, that's probably why.
Do not look into laser with remaining eye.
The experiments formally tested at this wind tunnel site have been moved to congress. An unnamed NASA reseacher was quoted as saying "There is just so much hot air expelled there, it seemed redudant to have a wind tunnel. In fact, we're also looking at this thus untapped resource as a possible source for energy".
NASA is also looking into tapping the "natural gas" deposits found around the nation's Taco Bells.
Good judgment comes from experience, and a lot of that comes from bad judgment.
karma police: arrest this man, he talks in maths; he buzzes like a fridge, he's like a detuned radio. [radiohead]
Despite the advances in super computer technology that allow the behaviour of even very complex materials to be tested in a virtual environment, a wind tunnel may still be a far cheaper and less time-consuming option, especially with one-off experiments (such as for the Mars landing parachute mentioned in the article). The wind tunnel tests the actual thing, and although it takes time to setup, a supercomputer takes a considerable amount of time, work and money to program to mimic the effects of the wind tunnel and the item being tested.
What is the point of the internet?
My first job out of University was working as a computer operator at a wind tunnel.
We did lots of commerical and military stuff, and I'm really not surprised to find the F117 and a few other machines that I prolly shouldn't mention not on their list of aircraft we helped build.
For a young geek in Western New York, this was a radically cool job. When I started working there we used a bunch of IBM 1401's, at the time their largest single installation of these machines.
Later we became a DEC shop, and beta tested their PDP 11/70 series of machines.
Prolly the neatest thing - aside from the computers that is - were the models. There were a group of craftsman that would carefully, over a period of months and sometimes years, hand craft these incredibly accurate models of the various aircraft.
But they weren't just static models, being integrated with hundreds of air pressure sensors.
I worked on what was called the 'Data Reduction Team'; our machines captured, in real time, data from these sensors and later we could model the prototype aircrafts performance - should it be built that is!
Far cheaper to spend a few months in a wind tunnel testing various models then to build the real thing and have it crash.
When working we were a 24/7 shop, and although the money was good, that was the rub. The biz was largely defense driven, and after a few years I got tired of the binge and purge nature of working in defense.
But the story had a happy ending, as I landed a gig at Bell Labs and never looked at the defense industry again.
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During the early '90s, I was stationed at Onizuka AFB which is right next to the Moffet/Ames facility. Back then, the wind tunnel had so many customers they were trying to get permission to operate the wind tunnel earlier and later than usual. Why did they need permission for the local government? This thing was LOUD. Once I was in a classroom that was right next door to the tunnel. Right in the middle of the lecture, it sounded as if a giant air conditioner was turned on. When we went outside, we figured out that it was the wind tunnel - you had to shout to be heard. The local communities (which had houses about 1.5 miles away) always complained about the noise. They didn't want it operationg before 7:30AM or after 9PM. NASA supposedly begged to get exceptions to this rule because they had "customers lined up from all over the world."
It is interesting to see now they don't have enough customers.
Yeah, but the article said that the things were "hardly used". To quoteth the parent post:
wind tunnel tests the actual thing
The largest one could house a 737, which is not that large of a plane, and it can only attain a speed of 140 mph. What good is that? This is a very small subset of the "actual thing". I mean if you already went to the expense of creating a fullsize preproduction aircraft, why not throw a robot pilot, a computer and some sensors and fly the thing for real? Or throw a 1/4 size plane into a windtunnel that can test up to 700 mph?
Subsonic air flight is pretty much old hat by now. "Real" windtunnels can do things at speeds up to mach 7 or so to test the interactions of heat/pressure/speed that approach chaotic interactions and are very difficult to model or conduct a real test, and these windtunnels are at the threshold of our current technologies. This is what I would like to see from NASA. I see this as a sign of progress, not a sign of budget cuts.