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Posted on 04/20/2009 9:40:18 AM PDT by SunkenCiv
A new 3D model linking magnetic fields to the transfer of energy in space might help solve a physics mystery first observed in the solar wind 15 years ago. Scientists at The University of Alabama in Huntsville and Ruhr University in Bochum, Germany, developed the simulation while studying turbulence and energy transfer in the plasma carried away from the sun in the solar wind... What Wind and the other spacecraft saw was particles in relatively small-scale solar wind eddies getting "hotter" than theories predicted they should get. A theory published in 1941 by mathematician Andrey Kolmogorov established a generally accepted relationship between the size of eddies and the amount of energy released or dissipated: The smaller an eddy gets the more it interacts with its surroundings, so the greater the energy loss. This "lost" energy heats plasma in the solar wind. The Kolmogorov law set the ratio between size and energy at 5/3: In a dynamic fluid, the amount of energy released should increase by a factor of five when the size of the eddy shrinks by two-thirds. Except, apparently, in the solar wind and other regions influenced by magnetic fields. The Wind spacecraft and others found that in the solar wind's smaller eddies the link between size and energy jumps to 7/3, a 40 percent increase in the efficiency of energy transfer between larger and smaller plasma eddies in the turbulent solar wind... If small eddies in the solar wind are more efficient than expected at transferring energy, that might help explain the hot particles discovered by instruments aboard Wind and other spacecraft.
(Excerpt) Read more at uah.edu ...
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http://www.freerepublic.com/focus/f-news/1666988/posts
[snip] ...the patterns of light and dark in Van Gogh’s paintings follow Kolmogorov scaling, the model of turbulent flow described in 1941 by the Russian scientist Andrei Kolmogorov... “Starry Night and other impassioned Van Gogh pictures were painted during periods of prolonged psychotic agitation and captured the essence of turbulence,” [the author] said. Van Gogh apparently lost the ability to depict turbulence while he received treatment for psychosis. While in hospital, after mutilating his ear, he was prescribed potassium bromide. During this period, which Van Gogh said was “absolute calm”, his works contained no evidence of Kolmogorov scaling.
With apologies to Old Blue Eyes.
The solar wind, came blowin’ in - from across the void
It eddied there, around Altair- powering up my droid
All summer long, we sang a song - and then we strolled that golden sand
Two sweethearts, and the solar wind
Like numberless bytes, those days and nights - they went flyin’ by
The world was new, beneath a red umbrella sky
Then softer than, an alien man - one day it called to you
And I lost you, i lost you to the solar wind
The autumn wind, and the winter winds - they have come and gone
And still the days, those lonely days - they go on and on
And guess who sighs his lullabies - through nights that never end
My fickle friend, the solar wind
the solar wind
warm solar wind
mmm the solar wind
:^)
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