15. Flow Instabilities

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Күн бұрын

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.

Пікірлер: 22

@prajwalnaiduiitk849 2 жыл бұрын

The video is more than 50 years old yet the content quality and explanation is way better than the modern ones

@OCD.Reader 3 жыл бұрын

It's crazy how no videos even with modern technology has managed to surpass this video in terms of solid introduction.

@pustakgagin2826 8 жыл бұрын

It is for these kinds of videos that television was originally intended.

@berndeinfeldt1228 8 жыл бұрын

The videos of the instability examples are really great!

@pedrorosendoalvaradorivera1601 Ай бұрын

🎯 Key points for quick navigation: 00:34 *Flow instabilities are common in various fluid phenomena, influencing everything from plumes of smoke to flows between concentric cylinders.* 01:39 *Turbulent instability often marks the onset of chaotic flow patterns, observed in phenomena like turbulent plumes.* 03:55 *Interfaces between fluids of different densities can exhibit Kelvin-Helmholtz instability, leading to wave formation and potential turbulence.* 05:28 *Air blowing over a liquid surface can generate waves as a form of flow instability, demonstrating amplification characteristics influenced by airflow speed.* 07:19 *Flow instability mechanisms act as frequency-selective amplifiers, triggering wave growth from random disturbances in the airflow.* 09:48 *Experimental setups illustrate how airflow speed influences wave amplification, showing distinct amplification thresholds at varying speeds.* 13:24 *Flow instability's characteristics are governed by parameters like wind speed and frequency response, crucial for understanding amplification conditions.* 17:44 *Various flow instabilities, such as Taylor instabilities and Benard cells, exhibit distinct energy supplies and critical parameters influencing their development.* 23:31 *Reynolds number plays a critical role in flow instability, as seen in examples like vortex shedding behind cylinders.* Made with HARPA AI

@KaliFissure 2 жыл бұрын

Thank you for this! This is really a genius intro to the topic. 👍

@magnifiedmicrons 2 жыл бұрын

Gortler vortices are same as toroidal vortices that appeared in rotating cylinder fluid instability experiment

@corneliubalan5196 11 жыл бұрын

Va doresc succes ... imi cer scuze daca initial adresa a fost incorect transmisa! Good to have a MIT near by you ... elder seems to be better, at least in scientific education!