How NASA Tests Spacecraft Reentry

Bit of a different video, trying some new stuff! Thank you so much to NASA Ames for letting us tour the facility, and for putting up with that thing I did in their wind tunnel.
‪@scottmanley‬'s video on the Arc-Jet: • How NASA Tests Heat Sh...
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[@thethoughtemporium]

So jealous ya'll got to go on this tour. It looks amazing

[@JaredBrewerAerospace]

With your brain and complete thought process, due it would catch fire.I've been there. Anyone one section alone, is overwhelming. There are destructive dynamic mechanical test cells. Magnetohydrodynamic liquid "wind tunnels".... At the end, I was asked, "What did you think?" I said, "I think I need a nap."

[@rojka-_-]

Bro atleast you are american not like me who is Lithuanian. You are so privileged

[@hedgehog3180]

@@rojka-_- Hey we have ESA, CERN and ITER here in Europe, there's plenty of cool stuff for us to see.

[@factsarefactsanddonotlie8397]

is your second name Musk because boy do you look like him

[@ke9tv]

@@rojka-_- Justin's Canadian, isn't he?

[@Liamissocool]

I don’t get why they made this so complicated when they could’ve just made it out of blue tape and hot glue

[@heikos4264]

there's a bit of german ancestry in NACA/NASA, that's why 😅

[@thefantasyforge5015]

However complicated it may be, they still used paperclips.

[@JimOHalloran]

To quote Xyla Foxlin: "There's a reason hot glue rhymes with Mach Two."

[@gggggggggg-ms8lm]

Government agency

[@benjaminrickdonaldson]

Tim, Joe and Scott are legendary.

[@DerrickBommarito]

The slightly different focus on the details in the arc jet system, modelling the engine, and going into the wind tunnel tech at the facility was super cool. Can't wait to see others' videos for more details and I hope more videos like this get to happen in the future! Just the right amount of rabbit holes and the writing is great. And the video shots are entertaining. More waves at perfect optics plz!

[@PSwayBeats]

13:51 KZbin will never die as long as there is people teaching entertaining and everything else I don't see it ever going away

[@neo16769]

I got to do some research project at AMES about 10 years ago. Really wish I could have toured around all the facilities like you did. Those wind tunnels are massive up close.

[@mardak2871]

the oil flow (or equivalent) is used in formula one racing cars. You usually can see it on the practice "one" (and mostly in the beginning of the season) . They apply it to the edges of the car and after one or two lap they bring the car in the garage and look at the flow of the air.

[@T_Mo271]

Nice look inside Ames. Fascinating work happens there with a long history.

[@robbewillaert6970]

Oil testing is actually still used alot with f1 cars. Due to the regulations they have limited windtunnel time so during testing they add "flow viz paint" to the car to see how the air flows around while driving.

[@KegRocket]

One heck of a tidbit, thanks for sharing! And also that kegular cameo at the end 😎

[@madmonkey7183]

Phwoaar. Someone turned an old Skool Mac into a robot. So awesome! Thanks for sharing this with us Joe. I'm loving the extra side tracks !

[@Hotcubcar]

I'm so glad you decided to share this. It feels like something I'd never have been able to see on my own.

[@Braeden123698745]

Thank you for letting us tag along in our own way. These are the kinds of videos that would have gotten me interested in STEM as a kid, and keeps my love of learning going as an adult.

[@johnno4127]

I'm glad YT suggested this after Scott's video. Well presented and it was nice to hear a different perspective.

[@embeddedtom]

I used to work near Ames, in a building under one of the landing patterns. Fell in love with NASA's ER-2 jets. I used to call up the High Altitude Branch (I think I'm recalling that correctly?) on Mondays, and ask if there were any ER-2 flights scheduled for the week. If there were, they'd tell me which day(s), and departure & return times. I'd drive over to the airfield to take pictures of takeoffs, then later go up on the roof of our building and take photos of landings. Beautiful aircraft. The director offered me a chance to visit and take photos up close, but never got the around to doing it.

[@shyne2643]

Honestly i have a hard time beliving you managed to increase you video production rate so much, and i'm really greatful for every high quality video you make, thank you so much!

[@maxhugen]

Cool to see what a "wind" tunnel really looks like, and the immense scale of this! 👍🇦🇺

[@calaphos]

I used to work in the aerospace/cfd area and got tours at a wind tunnel a few times. It was significantly smaller, but still the local electric utility had to be called before starting the thing due to its gigantic power consumption. Nowadays the Compute Cluster for CFD at the location actually surpassed the wind tunnel in (annual) power consumption. Theres also a lot of interplay between CFD simulations and wind tunnel experiments, e.g. CFD code is usually validated from wind tunnel experiments and wind tunnel experiment data needs to be corrected for wall effects, sometimes using CFD results.

[@speedboard.]

Thank you for making amazing content and for pushing the boundaries of your own technical knowledge and capabilities. Also, there is no rabbit hole too deep for us. Post more tangent videos.

[@tobins6800]

I imagine that if we all got bored and moved on, you'd still make videos of some sort for documentation. I grew up around EAFB, many of these bring back memories. Like checking out the airplane graveyard outside of EAFB proper. Launching the Green Machine 2 stage F size model rocket. The Mojave Green rattlesnakes.

[@Jimothy3041]

ngl I was expecting "I'm Joe Barnard, Fly Safe" at the end

[@laoch33]

😂. I swear he did a Scott Manley impression for a few seconds after telling us to go over to his vid 🤔😂

[@chibs3666]

Originally became a fan because of the trying to land a model rocket series, but now I'm just here for the ride. Loving all the videos you're putting out 💪

[@ARISTO_Music]

the machine holding the thermal resistant materials plays the role of a camera man which cant ever get hurt or die , by the laws of nature.

[@michaelclark9319]

This is what I'm here for! Excellent STEM content and a damn good watch! Thanks, dude!

[@giantfrigginnerd]

Youve been making some bangers recently. Loving it

[@sethgibbons80]

Dude this is amazing! 5:20

[@treynamy]

Amazon Joe! Nice, love the content as usual! I appreciate you!

[@johncoles]

Thank you Joe for making videos so many of us enjoy!

[@Private-GtngxNMBKvYzXyPq]

Thank you for sharing!

[@stairjoke]

Those facilities are just mind boggling!

[@mhansl]

Joel, your channel is special. That humble thank you is icing on a rocket fuel cake. Keep it up, man. We are all in.

[@marklr5716]

I'm sorry Joe... at 5:30 when it cuts to you with your blowtorch after witnessing the Arcjet I actually actually lol'd

[@jimurrata6785]

Im startled you didnt dive into the difference between frictional and compressive heating, but the Ames facility is amazing!

[@grumpygreg7505]

Awesome. Thank you for sharing. As to your thoughts on KZbin - as long as creators such as yourself are documenting things they do and are excited/passionate about there will be an audience such as myself who will Watch, Learn, & Enjoy. Blessings & glad you got to do both OpenSauce and this trip in particular.

[@theguy1122]

They are actually using an ion thrusters. Pretty cool.

[@DrYmath]

Would love to see more little videos like this between the "big" ones! Your passion is contagious :)

[@Marc83Aus]

Looks like i'm going to watch half a dozen videos about the Arcjet plasma lab. haha. Thx for the visuals

[@mikesimons1544]

Thanks Joe, nice show of the tour. Technically since they are a federally funded project the costs of operation is somewhere buried in the federal budget. Good luck on digging that one out. Parts of it reminded me of U of Ill nuclear reactor they had back in the 70's when I was student. Totally closed now of course (bad).

[@WarlordEnthusiast]

That is by far the most cool slow mo footage I've ever seen

[@daynosdr]

We used to pay about $1000/h for the LSWT in San Diego. Which may be too slow for rockets proper, but would probably be an accessible caliber of tunnel for you would rent out and validate a CFD model.

[@lemixhd9864]

You area amazing Joe, I love all of your videos, you deserve all because the hard work you put in your projects

[@zachbrenner9959]

Nice cameo of project keg rocket. I can't wait for his next video

[@KnowledgePerformance7]

I think the real issue with CFD is coupled dynamic edge cases. CFD + FEA combines the assumptions and errors from both. Throwing a model in a wind tunnel avoids this issue. I've also heard from an aerospace friend that sometimes adjusting the physical model quickly is easier than redesigning a part in a CAD package.

[@talyrath]

I think there are two types of channels. The ones with interesting content and the ones where the presenter makes the content interesting (eg Tom Scott). The first kind people has people wander away when they get bored, but the second keeps going until the presenter says, "I'm done, I have to stop." I've seen content on Ames that was so dry that people only watched it because they were forced to, so I think you're pretty firmly in the second camp. (Also, because it has to be said, I want my heat shield made out of whatever they use for the test arms in the arc jet complex.)

[@Allan_aka_RocKITEman]

Great video, Joe...👍

[@tobyg2377]

We need a longer video 😂 so many things I want to know more about. Could do with a whole series branching from this video!!!! NEED MORE

[@MrCouscous]

thank you you !

[@jjoey.s]

Your videos are very inspiring. Thank you Joseph!

[@57z]

I see at least five different KZbin science personalities in your group photo! So awesome you all got to experience the facility in person, especially as a group. You all collectively are carrying the baton -of-knowledge and passing it to the masses. Much like PBS, Nat Geo, Carl Sagan, Bill Nye and the like to the next generation. What is that dodecahedron like structure several of the you are holding in the picture? Did you get to build it and take it home?

[@Simple_But_Expensive]

So can you list your fellow creators so we can check out their channels?

[@edwardramirez9213]

I cannot wait till you get one on Pluto!

[@marcmarc172]

This is, by far, the best ablative video I've ever seen. Amazing for my mental model!

[@CodeLeeCarter]

I think the fact that we've lost knowledge and no longer know how to make something is a tragedy, I hope NASA has learnt a lesson here and documented everything. Great video as always, I Like Plasma, lolz

[@Spacedog49]

The last postgraduate student that I helped, did his project on arc-jets.

[@newmonengineering]

You can visualize waterflow like airflow at home for cheap by using graphite. The cool thing is you can evenly space magnets above the water and it will creat streams like they do with smoke in actual wind tunnels. The magnet reacts just enough on the graphite to see the colors change. This is one of the coolest ways to demonstrate and find turbulant vortexes and the fact that you can do it at home is very cool. Does it give you numbers? No. But you can get a decent visualization of fluid dtnamics on an actual part or body moving through the water.

[@jdsahr]

I remember when you estimated $200 -- $2000 / hr for wind tunnel time. Oh grasshopper, that made me chuckle. The salaries alone of the people who run that wind-tunnel complex are almost certainly greater than $2000/hr. I wouldn't be surprised if a realistic cost was closer to $200/second. Of course, that was a honking big (*) wind tunnel complex I got to tour a wind tunnel in the French Alps (Modane): mind blowing. They were running the big subsonic tunnel while I was there, good lord it was loud. The noise extended to such low frequencies that you could "hear" them because of the pressure waves striking your chest. (*) "honking big" is a technical term.

[@dyhidrogenmonoxide]

Liked for the echo test ;)

[@TransitionQuest]

Do you remember your camera looking at camera rocket may it can be saved (only assumption) if you make the camera above came out like the camera below then even if it came out entirely still it could be pushed back inside because of high speed air and rocket could be stabilized and face that camera downward and you could had still got camera looking at camera shot

[@justjoe7313]

This is beyond interesting, it's crazy good!!!!

[@CraigStuntz]

Thank you for the new title!

[@jdavidcard]

I really enjoyed this and all of your other videos. Thank you!

[@JakeDownsWuzHere]

yay new video!

[@honzaled]

Imagine what NASA could do it if had the budget of the US military. I think NASA is really underrated and doesn't get the money it deserves.

[@rjung_ch]

Joe, I only recognize 4 of the people there, do you want to list up all of the people who were there please?

[@fabian1150]

Amazing video! Thank you for your effort and dedication! :)

[@baileyrahn266]

I saw you on Scott's video!

[@lukezhang3017]

Joey bizzle secretly loves hybrids and used his hatred of hybrids as a facade so he could infiltrate NASA Ames to steal their hybrid technology.

[@BPSspace]

NUH UH!!!!

[@these.are.my.things]

Think oil flow is used a lot if Formula 1 for on track testing. They call it flow-vis. Or if not the same thing seems very similar.

[@tommclean9208]

great video, felt like a smarter every day video

[@dukenukem8381]

I wonder how many folks from Peenemunde facility helped to design /build this early NACAA facility , because many things look weirdly similar.

[@airplaneian]

that's interesting they were cagey about hourly rates, you'd think that'd be public info... it can be a bit hard to calculate a single number, but I work at a national lab and even here that stuff is usually ok to talk about

[@thegps7197]

Truly awesome video. Thanks for sharing

[@caeli5532]

Thank you

[@creativeartwithishani818]

man what a lovely content with a sense of humor

[@rjmunro]

When you said $200 - $2000 per hour i was imagining a much smaller facility - something where you open a door and put a scale model in, not something walk-in sized.

[@devinholland2189]

I know a guy with hardware on the moon, I could put you in touch with him. He built the sensors for the Lunar Atmospheric Composition Experiment (LACE).

[@unknown121290]

my school has an arcjet and it is crazy to see in use

[@mugambindwiga163]

What can I say? I love your work. I love your vibe. You're the man. You have inspired me in ways you cannot understand #RutoMustGo

[@tripplegracing8276]

This is a great video!!! awesome

[@MaximumMatador]

This is like the Avengers of Space-Related KZbinrs

[@NickCohn]

Thanks!

[@josedanielmendoza2305]

ohh cool video and congrats....

[@YMandarin]

was Integza at the facility? cause you had a panel with all the rocketry guys at open sauce, and Integza was also there

[@bloodbound696]

Btw... Do you guys remember the Cold plasma fire videos from other creators? Couldn't they use that in some way? at least for internal cooling?

[@usamabinmuzaffar692]

Thanks for the video!

[@StevenPeng-i9r]

Wow there's also Tim Dodd

[@glennback3105]

Super sick vid cant wait 4 more

[@berttorpson2592]

I googled AMES after open sauce and I feel everyone did the same thing

[@tompw3141]

I suspect the cost is more like $10,000/hour for when when the wind tunnel is actually running, plus $10,000/day for set-up/take-down.

[@Oysteims]

I am guessing space and aerospace costs are kind of in the same ballpark as subsea (deepwater) stuff. If you want to do hyperbaric pressure testing of your equipment to, let's say, between 5000-11000 meters in depth, they won't answer your email if your budget is 2000$ per hour. All the preparations, and scheduling of the test facilities, and the investments they have made into some of the worlds most specialized equipment (especially if you're testing something large, as the price grows exponentially with the diameter of the pressure vessel used for testing) - they won't bother unless you are prepared to spend close to a million for like a week or two of testing. The hourly rate is probably like one order of magnitude off.

[@patrickbonin137]

So good to watch...I learn so much..❤

[@DA_Fuller]

Great video Joe! 🚀

[@ben_1]

9:07 Side note: Oil flow is stll used heavily in motorsports, especially F1, since the regulations allow the teams very limited CFD and wind tunnel time.

[@thes7754]

dont they use the fancy color changing paint too?

[@ben_1]

@@thes7754I've never seen them use color changing paint. They add color pigments to the oil so they can see it better against the livery - the oil dries and leaves the pigment on the surface in the shape of the air flow.

[@robmulally]

I subbed for the rabit holes

[@user-ig8pp3st4v]

I use plasma surface treatment every other day in the nanofab cleanroom!

[@xWood4000]

Really interesting that they prefer REDs over phantoms or even industrial slow motion cameras

[@TheSnivilous]

I would think running a wind tunnel like that would be an order of magnitude or two higher than you estimated. I mean $200/hr is how much, or less, than one person can charge. I would think it'd be in the realm of $50k/hr, probably higher. I also don't see CFD ever taking over a test model, the same way FEA can't replace physical testing. People put way too much faith in a computer model, which can easily be wrong if someone inputs the wrong parameters.

[@dgthall]

Or, you know, the model's wrong. Because they're all wrong, we just don't know how until we try stuff IRL...

[@underseaowl7440]

I feel like 4:34 is what we all imagine science LOOKS like.

[@jkajewski]

Got a master list of all the cool creators who were there with you?

[@jsu-oz1fo]

I thought Joe could walk around AMES like a celebrity but he seemed to be treated like a tourist