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Critical geometry of two-dimensional passive scalar turbulence

J. Kondev·G. Huber
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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.

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J. Kondev, G. Huber. 2000-11-10. Critical geometry of two-dimensional passive scalar turbulence. https://doi.org/10.1103/physrevlett.86.5890

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