Fluid Acceleration in the Bulk Turbulence of Dilute Polymer Solutions
Fluid Dynamics
2009-11-13 v1
Abstract
We report experimental measurements of Lagrangian accelerations in the bulk of intense turbulent flows of dilute polymer solutions by following tracer particles with a high-speed optical tracking system. We observed a significant decrease in the acceleration variance in dilute polymer solutions. The shape of the normalized acceleration probability density functions, however, remain the same as in Newtonian water flows. We also observed an increase in the turbulent Lagrangian acceleration autocorrelation time in these dilute polymer solutions.
Cite
@article{arxiv.0801.1695,
title = {Fluid Acceleration in the Bulk Turbulence of Dilute Polymer Solutions},
author = {Alice M. Crawford and Nicolas Mordant and Haitao Xu and Eberhard Bodenschatz},
journal= {arXiv preprint arXiv:0801.1695},
year = {2009}
}
Comments
5 pages, 4 figures