  We consider relativistic hydrodynamics in the limit where the number of
spatial dimensions is very large. We show that under certain restrictions, the
resulting equations of motion simplify significantly. Holographic theories in a
large number of dimensions satisfy the aforementioned restrictions and their
dynamics are captured by hydrodynamics with a naturally truncated derivative
expansion. Using analytic and numerical techniques we analyze two and
three-dimensional turbulent flow of such fluids in various regimes and its
relation to geometric data.
