Direct numerical simulations of statistically steady, homogeneous, isotropic fluid turbulence with polymer additives
Fluid Dynamics
2011-02-01 v2 Chaotic Dynamics
Abstract
We carry out a direct numerical simulation (DNS) study that reveals the effects of polymers on statistically steady, forced, homogeneous, isotropic fluid turbulence. We find clear manifestations of dissipation-reduction phenomena: On the addition of polymers to the turbulent fluid, we obtain a reduction in the energy dissipation rate, a significant modification of the fluid energy spectrum, especially in the deep-dissipation range, a suppression of small-scale intermittency, and a decrease in small-scale vorticity filaments. We also compare our results with recent experiments and earlier DNS studies of decaying fluid turbulence with polymer additives.
Keywords
Cite
@article{arxiv.1008.0051,
title = {Direct numerical simulations of statistically steady, homogeneous, isotropic fluid turbulence with polymer additives},
author = {Prasad Perlekar and Dhrubaditya Mitra and Rahul Pandit},
journal= {arXiv preprint arXiv:1008.0051},
year = {2011}
}
Comments
consistent with the published version