12. Fluid Dynamics of Drag (Part II)

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.... They are really great stuff.

[@PacoOtis]

As a retired military pilot it is only fair that I finally realize how much brain work and research went into all the airfoils that exist. This is impressive and I must admit I don't yet fully understand all he is presenting. Thanks for providing these videos.

[@FlyNAA]

Nice last name relating to the subject matter!

[@betitall33]

I don't know if it's the era or just MIT, but I find this instruction to be very concise and effective. Each concept introduced in sequence with tangible experiments. This is the only way to learn, for me at least.

[@holipinieo1]

Some of them have gotten me sleepy, but others have been inspiring to expand my fluid mechanics knowledge.

[@McAwesomeVille]

Ironic how he explains the principle using a U-tube on KZbin

[@yadinlevert2506]

Christoffer Sannes loved it

[@vikingsofvintageaudio7470]

Great videos! Although, I find it confusing with the lag between audio and video. Would it be possible for you to fix this? If you don't have the time, I could do it for you if you provide me with the material.

[@aldomaresca9994]

i would collaborate on that It would be fine too to get hands on the original source, because it looks really bad

[@kyuzo9999]

Indeed horrible, problem is that it is not a simple out of sync audio and video but some kind of delay that is increasing towards the end

[@300483rahul]

plz help, Is there any other video on youtube without lag??

[@steventhehistorian]

@@sukumarankannan3109 omg you're a hero!! Thank you!!!

[@graybailey9196]

The video has a high Reynold's number and the audio has a low Reynold's number, and youtube is a highly viscous fluid.

[@Map_of_Your_Head]

MATTERS LOOK COMPLICATED

[@graybailey9196]

At 29.00 he provides a brief summary of the video. Incase someone has to write a summary of the video for homework.

[@robinlehnerd1475]

I do agree, that these videos are very effective for explaining fluid-dynamic drag, although I learn less than I could, If I had not already discovered most of the phenomena previously.

[@mvsprakash2538]

nice videos it made me to understand easly

[@robinlehnerd1475]

I have a question. Perhaps from one of you others who commented on this video. What do you use this knowledge for? I have tried to watch as many of these kinds of things, as possible, and have spent years of personal study and experimentation with all ranges of fluid dynamics, accessible to a person with very limited social, economical and technological access. But my interest is much like an artist with paintings, or a genius with his inventions. I don't exactly know why I cannot lose interest in fluid dynamics, even though I do not know what to do with my knowledge, once learned, except keep experimenting (in small scale of course). I am curious whether my scientific interest is reasonably explained by itself alone. If for nothing else. What are you people trying to "get" from these videos? I would probably have nothing more to say to my question than that I wish I knew. I would appreciate a reply.

[@kevinbyrne4538]

Legion Long These videos on drag introduce important concepts that are used in the analysis and design of aircraft, ships, and drive systems (propellers, jet engines, birds' wings, etc.). They're also relevant to hydrodynamics, e.g., the flow of liquids and gases through pipes (or blood vessels). More generally, the nature of turbulence and the conditions when it occurs, remain important unsolved problems.

[@vikingsofvintageaudio7470]

I had for a long time a similar interest in clouds but I never got very technical about it. As for my use of these videos, it's to get a better understanding of how fluids behave. I'm an engineer and I'm currently designing and building a wind tunnel for a science museum in Sweden where I live.

[@holipinieo1]

These professors were mechanical engineers. Maybe getting a mechanical engineering or applied physics degree is your calling.

[@bully-_maguire]

It is 6 years later, have you applied fluid mechanics in any way?

[@robinlehnerd1475]

@@bully-_maguire If you are asking me, yes... and?

[@MrGustavier]

thanks for sharing

[@TheEmptyForever]

GREAT video :D