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Summary: LETTERS
PUBLISHED ONLINE: 5 JUNE 2011 | DOI: 10.1038/NPHYS2010
The pirouette effect in turbulent flows
Haitao Xu1
, Alain Pumir2
and Eberhard Bodenschatz1,3,4
*
The disorganized fluctuations of turbulence are crucial in the
transport of particles or chemicals1,2
and could play a decisive
role in the formation of rain in clouds3
, the accretion process
in protoplanetary disks4
, and how animals find their mates
or prey5,6
. These and other examples7
suggest a yet-to-be-
determined unifying structure of turbulent flows8,9
. Here, we
unveil an important ingredient of turbulence by taking the
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