Surface Tension: Plateau Rayleigh Instability
2:56
Surface Tension: Plateau Rayleigh Instability
10 жыл бұрын
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@errajrajizakaria6596
@errajrajizakaria6596 5 жыл бұрын
I sometimes find that in areas of low pressure the water jet makes a rotation of pi / 2, before it is close to the ground and is fragmenting Like a wire twisted Thank you
@wfla2285
@wfla2285 6 жыл бұрын
Fascinating that Rayleigh was looking at this and Einstein first published on capillary action.
@ericconnor3728
@ericconnor3728 6 жыл бұрын
thank you very much. It's pretty discouraging for some1 new to the field when one mainly gets paper results when searching for plateau rayleigh
@Bert0ld0
@Bert0ld0 7 жыл бұрын
0:56 actually it's "pi" :) great explanation btw. What about a gas column in a material?
@julianhammer2822
@julianhammer2822 10 жыл бұрын
Because the water column is pulled apart by gravity and not confined like it would be in a contracting tube.
@joseluislopezlopez4492
@joseluislopezlopez4492 7 жыл бұрын
no that is the old belief hundred of years ago. Surface tension is the responsible
@stoyashot
@stoyashot 10 жыл бұрын
How come the pressure is high at the pinch point? Bernouilli theorem says opposite!
@derioderio
@derioderio 10 жыл бұрын
Bernoulli's theorem doesn't apply here, because as Julian Hammer also said, the water isn't flowing in a pipe, but it is falling in free-fall. What's causing the high and low pressure regions is the Laplace pressure, which determines the pressure across a curved free surface (i.e. a water droplet or column).
@gyro5d
@gyro5d 8 жыл бұрын
What causes the perturbations to start in the column? Laplace pressure or varicose perturbation?
@wernmachine
@wernmachine 10 жыл бұрын
Thanks for your video, it's nicely done.
@PratikkumarRaje
@PratikkumarRaje 11 жыл бұрын
Fantastic video. Thanks for making it. Superbly explained the phenomenon of droplet formation.