M. Mendoza, H. J. Herrmann, S. Succi
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.
View original:
http://arxiv.org/abs/1201.6590
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