Weather in a tank
Vložit
- čas přidán 25. 08. 2024
- March 21, 2012
Fluid dynamics plays a central role in determining Earth's climate. Ocean currents and eddies stir up contents from the deep, while atmospheric winds and weather systems steer temperature and moisture around the globe. As the planet spins on its axis, this rotation can significantly affect fluid motion. To fully understand how climate works, researchers at MIT say students must first understand how Earth's rotation affects winds and currents.
"Rotating fluids are not intuitive," says Lodovica Illari, a meteorologist and senior lecturer in the Department of Earth, Atmospheric and Planetary Sciences (EAPS).
Since 2001, Illari and her colleague John Marshall, the Cecil and Ida Green Professor of Oceanography, have worked to make rotating fluid dynamics more intuitive for undergraduate students studying weather and climate, using a demonstration aptly named "Weather in a Tank."
Read more at MIT News: web.mit.edu/new...
Video: Melanie Gonick
Mind blowing!
That's beautiful...
I do have a question: where the major eddies form, is that where the disturbance happens? And the minor eddies at other spots?
fascinating
This isn't an experiment, it is a demonstration. There are much more accurate ways to simulate fluid dynamics in a rotating system, but this is a quick, easy, and inexpensive way of doing practically the same thing. This is being used to teach students, not to conduct research.
Thats awesome
Hm, but was the water really perturbed the same way, considering that her punches were actually rotating from the reference frame of the rotating water box, while they were just straight punches on the static box?
I love it
To better simulate a weather system on a planet you should have it rotate about it's central axis the way it is now and also have it rotating around some point. To put this in perspective, right now you have simulated the rotation of the Earth and all that's needed is to simulate the Earths rotation around the Sun.
jayfulf the earths rotation around the sun only affects the distribution of heat, the actual motion doesn't do much versus the earth on its axis. You could better simulate the changes in heat distribution by moving the can of ice or adding more heat to the system. You can't go much beyond that though without a northern and southern atmosphere which is not possible with this model.
The Rotating Tank
Malformed Vortex
Of Storm Systems
Dizzy
Amazing. *-*
by splashing your stationary hand into rotating water, you simply put rotational disturbance into the water. just like twisting or stirring in a stationary tank, generating probably the same nice vortexes. so this video proves nothing than; bad science, i guess?