Critical geometry of two-dimensional passive scalar turbulence
arXiv:cond-mat/0011199 · doi:10.1103/PhysRevLett.86.5890
Abstract
Passive scalars advected by a magnetically driven two-dimensional turbulent flow are analyzed using methods of statistical topography. The passive tracer concentration is interpreted as the height of a random surface and the scaling properties of its contour loops are analyzed. Various exponents that describe the loop ensemble are measured and compared to a scaling theory. This leads to a geometrical criterion of intermittency of scalar fluctuations.
4 pages, 1 figure; comments to kondev@brandeis.edu