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arXiv · 1201.6590

Pre-Turbulent Regimes in Graphene Flows

M. Mendoza·H. J. Herrmann·S. Succi
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Abstract

We provide numerical evidence that electronic pre-turbulent phenomena in graphene could be observed, under current experimental conditions, through detectable current fluctuations, echoing the detachment of vortices past localized micron-sized impurities. Vortex generation, due to micron sized constriction, is also explored with special focus on the effects of relativistic corrections to the normal Navier-Stokes equations. These corrections are found to cause a delay in the stability breakout of the fluid as well as a small shift in the vortex shedding frequency. Finally, a relation between the Strouhal number, a dimensionless measure of the vortex shedding frequency, and the Reynolds number is provided under conditions of interest for future experiments.

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M. Mendoza, H. J. Herrmann, S. Succi. 2012-01-31. Pre-Turbulent Regimes in Graphene Flows. https://doi.org/10.1103/physrevlett.106.156601

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