11. Turbulence

[@thehivecolin]

Oh wow, I just uploaded this same video! This is great! That's my dad narrating.

[@unguidedone]

wow thats so cool :)

[@rmantilla0127]

And with better resolution too! Thanks

[@senayasar9548]

Aynen kardeşim inandık biz de

[@ooomicht]

@@senayasar9548 neden öyle diyorsunuz belki doğruyu söylüyordur. sizin gibi birine yakıştırmadım doğrusu.

[@Tadesan]

We wait patiently while he lights his pipe. That's baller.

[@aab-aab]

Its so cool to see real world examples like these and not just computer simulations.

[@senayasar9548]

Yıl olmuş 2020 hala bu videoyu izliorum diyenler beğenin de sayımızı bilelim (kerem hocadan gelenler, siz gelmeden önce de biz buradaydık)

[@streetscience8646]

I LOVE how he takes the time to light the pipe like a G.

[@AnnaFava_ThePsychedelicWeb]

Exquisite video! Besides the great demonstration of the subject at hand, I love the aesthetic appeal of the picture. Truly fascinating collection, thank you!

[@aab-aab]

Yes is so much cooler to see real world examples and not computer simulations.

[@sister1ist]

best videos ever made to better enplain fluid behaviours and properties.thx for sharing.

[@tutkukaradeniz1472]

boundan gelen arkadaslar lütfen zor sormayın

[@timbuttle6969]

I wish this was in 4K! really good video, thank you!

[@krishnabharathikb7496]

I was so scared of this subject, I started this fall at UBC and thank god I found this video, provides me the best basic understanding that I can get

[@mrcannotfindaname]

Aeronautical engineering student here, people don't teach like this anymore, so sad.

[@pranab1234]

The hopper was used only to 'streamline' the flow better and reduce the disturbances in the incoming flow. The Reynolds number increased because of the increase in flow rate as mentioned at 08m15s

[@pamelabreithaupt6637]

Excellent for my high school general physics class!

[@alperenbarin]

All nerds are here

[@brazilianniceguy]

Fox & McDonald's Fluid Mechanics chapter 8 brought me here

[@ochithyafernando1050]

which one was the phony movie scene tho

[@ym5414]

Hmm does anyone know which explosion scene is a phony?

[@Mossquitk]

I would guess that the not-fiery eruption is the real one. In a large scale motion with both a much higher density and velocity the Reynolds number would be bigger. With a bigger Reynolds number comes a larger difference in scale between the motions. I would see the huge plume of ash rising as the large scale motion and the small scale ones are mostly not even visible but could be the revolving clouds at the bottom. In the fiery eruption the flames are moving chaotically and change direction very quickly, just like the smoke around it. The difference in scale of motion is not as big.

[@TheBock104]

This dude is a baller, and I am loving their demonstrations, fuck maybe I am nerdy.

[@saarrrcamscms226]

Subscribed for the fluid dynamics series

[@Tadesan]

I LOVE non-monotonic behavior!

[@김동혁-e2r]

한화택교수님 파이팅!

[@carbon273]

Why does a decrease in viscosity increase pressure?

[@FlyNAA]

The higher drag (at the low and high range of viscosity) is a leftward force on the fluid, which necessitates a higher rightward force to get it to flow out the tube. This rightward force is the left-to-right pressure gradient (net rightward force on any given particle) that is whatever the manometer is showing on the left, and zero (open to atmospheric) on the right. It always has to be zero on the right, so the higher the drag, the higher the pressure gradient, the higher the pressure at the left (manometer) end. More simply put, higher drag acts as a virtual cap to the right of the manometer, causing pressure to build up higher as supplied by the pump. Lower drag allows free-er flow that allows less pressure to build up.

[@Mossquitk]

The higher drag (leftward force against the flow direction) comes from the transition from laminar to turbulent flow. The Reynolds-number (which describes that threshold) is defined as Re = (u*L)/v where u is the flowspeed, L is the flowlength and v is the (dynamic) viscosity. In this experiment L is constant, the flowspeed is also constant from the pump, and decreasing v results in a higher Reynolds number and ultimately in turbulent flow. In turbulent flow momentum is not only transferred in the direction of flow but also in the cross-flow direction.

[@emilianosalazarlizana9578]

los mejores cortometrajes

[@cemresaracoglu6069]

kolay gelsin arkadaslar lutfen zor sormayın sevgiler

[@tutkukaradeniz1472]

sağ ol canımm

[@ahsadeghi86]

where is video Nr. 12 ?

[@mateusps8698]

Hugs from Brazil

[@thehivecolin]

And yes, my dad had big hair :)

[@FlyNAA]

Your dad is the archetype alpha nerd. The bigness of the hair signals that like a lion's mane, and yeah I would submit.

[@oliviajshin]

im just trying to do my mae 130b hw

[@geonik123]

nice thank you

[@linktothesmash]

I can't wait to listen to this at x2 speed! lol

[@rohitbhosle6521]

Wow 😍

[@spenceryu7673]

check

[@sloppyjoes7]

"Today, we're going to talk about turbulence. But first, let me light my pipe. Yes.... Okay. Now, let's begin. No, please stop looking at my hair. I know it's big. I know it makes my forehead look even bigger. Okay? You done? Great. Now, onto turbulence..."

[@saarrrcamscms226]

Ben Madrid hahha!

[@yagzkarsn1213]

sa ozulu kardesim, allah kurtarsın

[@ipeknurgunhan2553]

kardeşim özyeğin üniversiteli mi demek istedin yoksa özürlü mü bi an önce cevap verirsen sevinirim ortalık karıştı.

[@yagzkarsn1213]

@@ipeknurgunhan2553 özyeğin üniversiteli...

[@mojevalka]

ooooh look at the haaair ;-]

[@johnflood9154]

@18:32 looks like a scary face.

[@kemalettinhepgulen5299]

doo yaa