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Originally Posted by dipayankar  Any idea why nature would choose this complex shape as a creation from nothingness? What would be the force dynamics involved? |
I must say your query is simple yet has hammered right on the nail. I believe you know you have asked a question that would have baffled any physicist or meteorologist studying atmospheric science on why nature would choose this shape, particularly the complex funnel shape of a tornado. Hitherto, the experts still have no clue to it after all sorts of attemtps and cited turbulence is still an unsolved problem of physics.
http://http://en.wikipedia.org/wiki/...ems_in_physics
So you have to agree with me that you are making a big ask, however, to someone who have started this thread, these questions are reasonable. So please be patient with me in my attempt to forward the answer, it might not be to your expectations and have loose ends in those unheard-of radical ideas and concept.
In a simple manner, this shape is most efficient for conservation of momentum in viscous mass in amazing states of equilibrium. I have an informal detailed explanation of this in a html page:
http://www.singularvortex.com/WFE%20....htm#AppendixB
As for the force dynamics involved for singular vortex that is naturally occurred, it is precession of the suspended spheroid enormously amplifed differentially on viscous mass. A detailed explanation is found at this section of a html page:
http://www.singularvortex.com/WFE%20...r%20vortex.htm
In my opinion, based on UVS, the scientific concensus for vortex theory went to meterologist's thermal mechanic model backed with Corolis force theory is a mistake. The dismissed mechanical model vortex theory represented by Einstein based on Earth's rotation on curved surface is downright correct, he did not have a good proof at then to prove his theory. Follow the html page, it will lead you to an immutable proof that the physicist's vortex model is correct.
These are the fundamental reasons on the shape nature has adopted for vortex, is still enigmatic in atmospheric science.
Best regards, Vincent.