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arXiv · 2303.13457

Scaling laws of two-dimensional incompressible turbulent transport

D. I. Palade·L. M. Pomârjanschi·M. Ghită
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Abstract

The diffusive transport in two-dimensional incompressible turbulent fields is investigated with the aid of high-quality direct numerical simulations. Three classes of turbulence spectra that are able to capture both short and long-range time-space correlations and oscillating features are employed. We report novel scaling laws that depart from the $\gamma=7/10$ paradigm of percolative exponents and are dependent on the features of turbulence. A simple relation between diffusion in the percolative and frozen regimes is found. The importance of discerning between differential and integral characteristic scales is emphasized.

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D. I. Palade, L. M. Pomârjanschi, M. Ghită. 2023-03-23. Scaling laws of two-dimensional incompressible turbulent transport. https://arxiv.org/abs/2303.13457

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