Rotational & irrotational flows

From "Fundamental Principles of Flows" and "Characteristics of the Laminar and Turbulent Flows" - (Hunter Rouse)
Courtesy of Dr Marian Muste, IIHR - Hydroscience & Engineering, University of Iowa.
The Fluids Laboratory is an integrated learning environment developed by IIHR-Hydroscience & Engineering for the College of Engineering of The University of Iowa.
www.iahrmedialibrary.net/

[@kvsalahuddin5]

dont know why, but i like to hear these lessons from such old videos ...

[@yesitsmojo24]

They are genuine that's why. Today's lecture videos are focused on gaining views and sUbsCriBerS instead of explaining the topic.

[@Kottam_Yallawa]

Because they address the origin of the concept

[@isaeljosafatmartinezclavel5283]

I wish I had seen this video when I took my first fluid dynamics course. Very ilustrative.

[@dormio558]

@2:10 "...and after a little practice, with plentiful use of the eraser..." absolutely sick burn

[@david_porthouse]

Nice demonstration that flow can go round in circles and still be irrotational. In an asymptotically subsonic fluid, sound waves travel at very high speed to get the fluid moving. However rotation or vorticity only travels at much slower speeds by convection or diffusion. Initially vorticity is only present at boundaries.

[@FLYAEROBOY]

Really helpful explanation & simple!

[@PunmasterSTP]

Rotational? More like "Really great and educational!" Thank you for sharing this. 👍

[@gecomle]

Nice to point out that for the flow field A~1/r there is a singularity of the curl at r=0. In fact curl A = 1/r d/dr (rA).

[@trendytrenessh462]

These transitions are on point yo!

[@SaquibFaisal]

In the tornado like vortex if we take an imaginary circular region. We'll notice that in side that circular region velocity of fluid is still inversely proportional to the radius of vortex. Which results in an overall spin in that region and hence it is rotational and curl is not zero. Then why on the basis of rotating pair of sticks rather than relative motion of the fluid particles.

[@hmnthr4008]

Great video.

[@digeshtandel225]

Very helpful to understand flow👌

[@shauryamalhotra9136]

great video!!! thanks a lot :D

[@ulost2dbest702]

Such a good video! Eye opening and good music also, almost like music from a Disney film like a ratatouille or a tangled!

[@jrtao3709]

why ball coliding do that ?

[@joppee]

How did this 7 years old video get into my recommendations

[@rupakkadam5798]

Thanks a lot

[@adhittyarhengga2027]

thanks a lot

[@user-oo3gd4se1e]

Thanks !!

[@abdullahsaif9046]

shoutout to doctor zaib!

[@aliagree8448]

Awesome

[@yoursubconscious]

Who else (in future) came here after reading Robert Greene's first chapter on Irrationality and Rationality under "The Laws of Human Nature"?

[@thetman22]

good song

[@affanahmedkhan7362]

bhtreen

[@nimaisarkar3786]

helpfull clip

[@bavasriravichandran7014]

Theme music 🤣✌🏿