Drift, diffusion and divergence
Fluid Dynamics
2025-06-03 v1
Abstract
Turbulent Taylor-Couette flow displays traces of axisymmetric Taylor vortices even at high Reynolds numbers. With this motivation, Feldmann & Avila (2025) carry out long-time numerical simulations of axisymmetric high-Reynolds-number Taylor-Couette flow. They find that the Taylor vortices, using the only degree of freedom that remains available to them, carry out Brownian motion in the axial direction, with a diffusion constant that diverges as the number of rolls is reduced below a critical value.
Keywords
Cite
@article{arxiv.2506.00621,
title = {Drift, diffusion and divergence},
author = {Laurette S. Tuckerman},
journal= {arXiv preprint arXiv:2506.00621},
year = {2025}
}