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arXiv · 1812.06487

Turbulent route to two-dimensional soft crystals

Mohit Gupta·Pinaki Chaudhuri·Jèrèmie Bec·Samriddhi Sankar Ray
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Abstract

We investigate the effects of a two-dimensional, incompressible, turbulent flow on mono-disperse soft granular particles and show the emergence of a crystalline phase due to the interplay of Stokesian drag (measured through the Stokes number) and short-range inter-particle interactions. We quantify this phase through the bond order parameter and local density fluctuations and find a sharp transition between the crystalline and non-crystalline phase as a function of the Stokes number. Furthermore, the nature of preferential concentration, as characterised by the radial distribution function and the correlation dimension $D_2$, is significantly different from that of particle-laden flows in the absence of repulsive potentials.

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Mohit Gupta, Pinaki Chaudhuri, Jèrèmie Bec, Samriddhi Sankar Ray. 2018-12-17. Turbulent route to two-dimensional soft crystals. https://doi.org/10.1103/physreve.106.l062601

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