Turbulent flows are very common and play a major role in the dynamics of physical processes. These simulations show turbulence in relativistic conditions of speed and energies, such as those expected near a black hole or in the early universe; in both cases, the fluid motion is close to the speed of light. The corresponding nonlinear differential equations of relativistic hydrodynamics were solved on the supercomputers at AEI and the Garching-based Computing Centre.
See here for a press release about these results.
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Snapshots at different times of a simulation of the energy density of a driven turbulent flow in a hot plasma. Bright regions represent portions of the flow with the largest energies and temperatures.
Snapshots at different times of the logarithm of the Lorentz factor, an important dimensionless quantity in relativity. It measures the size of the velocity of the plasma. Dark regions represent portions of the flow with the highest velocities and up to 99.95% of the speed of light.