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arXiv · 1808.01388

Inertial spheroids in homogeneous, isotropic turbulence

Amal Roy·Anupam Gupta·Samriddhi Sankar Ray
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Abstract

We study the rotational dynamics of {\it inertial} disks and rods in three-dimensional, homogeneous isotropic turbulence. In particular, we show how the alignment and the decorrelation time-scales of such spheroids depend, critically, on both the level of inertia and the aspect ratio of these particles. These results illustrate the effect of inertia---which leads to a preferential sampling of the local flow geometry---on the statistics of both disks and rods in a turbulent flow. Our results are important for a variety of natural and industrial settings where the turbulent transport of asymmetric, spheroidal inertial particles is ubiquitous.

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Amal Roy, Anupam Gupta, Samriddhi Sankar Ray. 2018-08-03. Inertial spheroids in homogeneous, isotropic turbulence. https://doi.org/10.1103/physreve.98.021101

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