7. Low-Reynolds-Number Flows
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- Опубліковано 27 кві 2011
- This collection of videos was created about half a century ago to explain fluid mechanics in an accessible way for undergraduate engineering and physics students. I find that no other series of videos has explained the basics of fluid mechanics better than this one by the National Committee for Fluid Mechanics (those national committees gotta be good for something...)
As such, I have uploaded these videos here for the benefit of students and interested laypersons. I do not own the copyright and these videos were not made by me. If anyone should want me to take them down, I will comply without complaint.
If you want scans of the printed notes that go along with these videos, check out them out over at the MIT side of things: web.mit.edu/hml/notes.html. They are really great stuff. - Наука та технологія
This illuminating film is a message from an era when education was about inspiration not assessment; when clarity of thought and language where part of a scientist's toolkit and departments had skilled manpower to build equipment to demonstrate physical principles and behaviour. Computers have been a phenomenal boon to science but when it comes to amazing people at nature's oddities and capturing students' imagination they fail to match what can be done with a few bits of plastic, syrup, dye and some mechanical ingenuity.
I wish I could live at that era😩.
I didn't learn anything that is going to help me on my test, but it sure was insteresting
oh boy...this is uber cool. havent seen such a collection of clear experiments in such a long time. was trying to understand reynolds number and this is so good!
Many thanks for sharing this very valuable lesson on fluid mechanics.
Brilliant presentation!
legendary taylor himself!!!!
great work, thank you for upload
That’s the best description of going through a black hole
Master Taylor!
Useful and wonderful things!
kinematic reversal is literally magic
god damm what a nice high quality experiments!
Much better than RWJ
God !! This is G.I. Taylor !!
Very interesting!!!
Is the phenomenon displayed 27:43 this the same reason why flapping wings are more efficient for birds but not for human carrying aircraft?
@12'45" he speaks about cavitation bubbles. To me it is not the case here but since I'm just an engineer and he's a professor, I would like to hear somebody else's opinion on this matter
The ball near the wall falls more slowly
what about 19:25 ?
With the distortion of the in grained coloured shapes ( being made of the same substance as the medium) The boundaries forces must not aggravate the relaxed state of the medium Because it can be reversed to its starting point ( compatible, relaxed state forces )
estupendo soy ingenieroaeroespacial y mecanico
which is the first fluid in minute 3:17?
+Jorge .CA I am pretty sure it is Syrup, but I can be wrong.
It is syrup.
Amazing experiments put together by a great mind!
6:00
OMG. Science is God. Scientists are messengers....
Great lecture which brings insight to Stokes flow...
I'm glad this comment exists
naught point naught five
All this syrup is making me hungry
Why (at about 4:30) did it make a bowl shape? Shouldn't it have been just like a cloud or blob?
Dynamic Meteorology brought me here.
He reminds me of pooh bear when he talks about the honey
In the sedimentation experiments, he didn't mention the influence of the walls. However, these are very important here. A cloud of particles in open space falls much faster, and this is not directly due to viscous forces, but due to continuity. Even with high reynolds number flow, a cloud in an upright pipe falls slower than the same cloud in the open air.
Thumbs up if you are watching this for ESS 311 Geomechanics
He did show what a single particle near a single wall does, but there's a big difference between that situation and a wide cloud of particles. A particle pushes the ambient fluid downward, and it must come up somewhere else. If there's nowhere else where it can come up because there are particles everywhere, then the fluid must go up close to the particle, which increases drag. As a result, the downward velocity of the particles is much smaller. Example: Boycott effect
wer ist auch wegen schneider hier?
This is so dry :c
dear God this was dull