@bp8__163
rocket nozzles and tomatoes? am i watching integza?
@nathandavis5021
While I appreciate other channels that make rockets/nozzles, they often feel like high school science fair projects. I feel like this is the first channel that’s actually used at minimum undergrad level math to design the nozzle geometry instead of eyeballing it or using a blackbox calculator. It’s exactly what I’ve been looking for in an aerospacey design channel!
@FurryKeidran98
Yes, please do an aerospike! I'd love to see how the spike can be tweaked and how different exhuast pressures will affect the shape of the exhaust.
@DylanEdmiston
Nice. Good math. You can fly supersonic with a sonic nozzle as the speed of sound of the exhaust is quit higher than the speed of sound in atmosphere. This is due to the higher temp of the exhaust. a=sqrt(RTy)
@ame7165
0:30 Integza gets wood
@joshjet182
I love it. Your editing is really tight and you're concise without sacrificing information. Really great video
@ChainsawFPV
Integza would be proud of the tomato destruction!
@patdowling5
Really enjoyed the level of detail and fluid mechanics formulas here, i think you nailed this format, great work and look forward to more - thanks
@flyntwick
I'm with the others on the Aerospike. Please do! Also, this channel got an immediate sub. Thanks for including real science with the material!
@Grandwigg
Nozzles are cool, mach diamonds are cool, shock waves are cool, a vortex is cool, and so is this video. The cross section, and imaging were wonderful (it's also super nice to see the attribution for the clips used -honor is to be applauded) and this video and discussion was great I love this kind of testing and demonstrations. As a spaceflight and rocket appreciation enthusiast, I fully enjoyed this video. (Twice, actually, so I could postea comment. Yt Mobile is annoying often) Since I'm not deep into that math, physics and model making and study, I'm only half way to fill rocket nerd- I have too many nerddoms for full citizenship in all.
@TastySlowCooker
This is probably an unpopular opinion, but I much prefer this type of video than the ~whoa look at how crashy I can make this rc~ video. If Mark Rober wasn’t trying to be the “world’s” “biggest” “coolest” “and” “awexomest” “vtuber” he’d be making this type of video. Keep the tomato though, I appreciate the nod to Integza.
@yiyou6529
I am not quite sure if you necessarily need the razor blade in this case. First, shockwaves are very easily visible and are commonly viewed with shadowgraphy instead of schlieren. The reason for that is due to the first-order nature of schlieren techniques. That also brings us to the second point. Your razor blade is horizontal. But from the images of the Mach diamonds on the edges close to the nozzle, the top and bottom edges are vertically symmetrical, i.e. dark-bright above and bright-dark below. For schlieren, the upper and lower parts of the image would be the same, indicating what is observed here is shadowgraphy instead of schlieren. I don't actually have a point here, btw.
@MCsCreations
Fantastic work, Michael! Really well done! 😃 Looking forward to see where you're going to use those! 😂 Stay safe there with your family! 🖖😊
@AerialWaviator
Great visualizations and graphics. Definitely would love to see an aero-spike comparison.
@XenonG
Aerospikes, gotta have them aerospikes!
@dharmeshsolanki4354
8:02 Integza is gonna like this
@makarlock
This is genuinely an excellent example of using hand calcs! I think this kind of demo is important to show the engineering YouTube algorithm how to…do engineering! :) No shade but can we fact check mach 3 though. I looked up a quick isentropic table for gamma 1.4 air, and M 3 is a 4.23 expansion ratio. I’m sure the geometry is hitting that, but static pressure at that speed is 0.027x stagnation pressure which I think vibe check as below separation criterion, so maybe the realized expansion ratio is lower? Additional evidence for this is the formation of water(?) condensation later in the blowdown. At mach 3, the t/t’ is 0.35 so ballpark 100K if expanding from 300K in the tank? If you know what the humidity in your garage is, might be able to eyeball what temp you expect the humidity to drop out into vapor. Or more realistically uhhh measure Cf since you’ve got a known orifice for mdot, area and a load cell. Great success though, love the vid!
@Mylyfmyrulz24
Well convergent divergent nozzles are efficient but you can try aerospike and plug nozzles for better efficiency and higher thrust
@EpicHeroSandwich
a cold aerospike would be cool to see for sure.
@integza