Micro-vorticity fluctuations affect the structure of thin fluid films
Abstract
The dynamic interaction of complex fluid interfaces is highly sensitive to near-contact interactions occurring at the scale of ten of nanometers. Such interactions are difficult to analyse because they couple self-consistently to the dynamic morphology of the evolving interface, as well as to the hydrodynamics of the interstitial fluid film. In this work, we show that, above a given magnitude threshold, near-contact interactions trigger non-trivial micro-vorticity patterns, which in turn affect the effective near-contact interactions, giving rise to persistent fluctuating ripples at the fluid interface. In such regime, near-contact interactions may significantly affect the macroscopic arrangement of emulsion configurations, such as those arising in soft-flowing microfluidic crystals.
Cite
@article{arxiv.2005.06214,
title = {Micro-vorticity fluctuations affect the structure of thin fluid films},
author = {A. Tiribocchi and A. Montessori and S. Miliani and M. Lauricella and M. La Rocca and S. Succi},
journal= {arXiv preprint arXiv:2005.06214},
year = {2020}
}