  Using a Lattice Boltzmann hydrodynamic computational modeler to simulate
relativistic fluid systems we explore turbulence in two-dimensional
relativistic flows. We first a give a pedagogical description of the phenomenon
of turbulence and its characteristics in a two-dimensional system. The
classical Lattice Boltzmann Method and its extension to relativistic fluid
systems is then described. The model is tested against a system incorporating a
random stirring force in k-space and then applied to a realistic sample of
graphene.
  Part I: We investigate the relativistic adaptation of the Lattice Boltzmann
Method reproducing a turbulent, two-dimensional, massless hydrodynamic system
with a zero-averaged stirring force randomly generated in momentum space. The
numeric formulation is evaluated and the flow characteristics produced are
compared to properties of classical turbulence. The model can reasonably be
expected to offer quantitative simulations of charged fluid flows in
two-dimensional relativistic fluid systems.
  Part II: At low Reynolds numbers, the wind flow in the wake of a single wind
turbine is generally not turbulent. However, turbines in wind farms affect each
other's wakes so that a turbulent flow can arise. An analogue of this effect
for the massless charge carrier flow around obstacles in graphene is outlined.
We use a relativistic hydrodynamic simulation to analyze the flow in a sample
containing impurities. Depending on the density of impurities in the sample, we
indeed find evidence for a potentially turbulent flow and discuss experimental
consequences.

Strongly Correlated Electrons;High Energy Astrophysical Phenomena;Fluid Dynamics