7. Low-Reynolds-Number Flows

  Рет қаралды 110,286

Barry Belmont

Barry Belmont

Күн бұрын

Пікірлер: 38
@billhirst4837
@billhirst4837 10 жыл бұрын
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.
@ibrahimaldossary1481
@ibrahimaldossary1481 4 жыл бұрын
I wish I could live at that era😩.
@NishanthSalahudeen
@NishanthSalahudeen 9 жыл бұрын
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!
@nshoebox
@nshoebox 12 жыл бұрын
I didn't learn anything that is going to help me on my test, but it sure was insteresting
@mvmbapple
@mvmbapple 11 жыл бұрын
Many thanks for sharing this very valuable lesson on fluid mechanics.
@jiyahit
@jiyahit 11 жыл бұрын
God !! This is G.I. Taylor !!
@ike4594
@ike4594 10 жыл бұрын
legendary taylor himself!!!!
@studio107bgallery4
@studio107bgallery4 2 жыл бұрын
That’s the best description of going through a black hole
@ESk3nKA
@ESk3nKA 8 жыл бұрын
which is the first fluid in minute 3:17?
@lucashildepirescunha
@lucashildepirescunha 8 жыл бұрын
+Jorge .CA I am pretty sure it is Syrup, but I can be wrong.
@BrijBhushan112
@BrijBhushan112 8 жыл бұрын
It is syrup. Amazing experiments put together by a great mind!
@lekunberriko1
@lekunberriko1 8 жыл бұрын
Master Taylor!
@jessicah.8322
@jessicah.8322 2 жыл бұрын
kinematic reversal is literally magic
@shaider1982
@shaider1982 11 жыл бұрын
Is the phenomenon displayed 27:43 this the same reason why flapping wings are more efficient for birds but not for human carrying aircraft?
@A1ekzz
@A1ekzz 12 жыл бұрын
great work, thank you for upload
@doctsh
@doctsh 13 жыл бұрын
OMG. Science is God. Scientists are messengers.... Great lecture which brings insight to Stokes flow...
@alexbk25
@alexbk25 11 жыл бұрын
god damm what a nice high quality experiments! Much better than RWJ
@lovecraft22
@lovecraft22 11 жыл бұрын
@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
@pinetreeqiao512
@pinetreeqiao512 12 жыл бұрын
Useful and wonderful things!
@irskaya
@irskaya 10 жыл бұрын
Brilliant presentation!
@peechryshe
@peechryshe 6 жыл бұрын
The ball near the wall falls more slowly
@feilongish
@feilongish 4 жыл бұрын
6:00
@ActiveStorage
@ActiveStorage 12 жыл бұрын
what about 19:25 ?
@davidbain701
@davidbain701 6 жыл бұрын
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 )
@stefangracik291
@stefangracik291 12 жыл бұрын
I'm glad this comment exists
@관찰파리
@관찰파리 4 жыл бұрын
Very interesting!!!
@hhughesm
@hhughesm 11 жыл бұрын
naught point naught five
@cristianaceros806
@cristianaceros806 5 жыл бұрын
estupendo soy ingenieroaeroespacial y mecanico
@josepaul5402
@josepaul5402 10 жыл бұрын
All this syrup is making me hungry
@xkopp375
@xkopp375 10 жыл бұрын
Why (at about 4:30) did it make a bowl shape? Shouldn't it have been just like a cloud or blob?
@vandenbroekeengineering9312
@vandenbroekeengineering9312 2 жыл бұрын
He reminds me of pooh bear when he talks about the honey
@shaufensterpuppe
@shaufensterpuppe 12 жыл бұрын
Dynamic Meteorology brought me here.
@LoveLuckyCharms
@LoveLuckyCharms 11 жыл бұрын
Thumbs up if you are watching this for ESS 311 Geomechanics
@grieske
@grieske 12 жыл бұрын
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.
@grieske
@grieske 12 жыл бұрын
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
@user-dg7ld1gu5t
@user-dg7ld1gu5t 3 жыл бұрын
wer ist auch wegen schneider hier?
@theleastcreative
@theleastcreative 8 жыл бұрын
This is so dry :c
@browneyedgirl090
@browneyedgirl090 11 жыл бұрын
dear God this was dull
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