  Specific dark energy models with a linear inhomogeneous time-dependent
equation of state, within the framework of 4d Friedman-Robertson-Walker (FRW)
cosmology, are investigated. It is demonstrated that such 4d inhomogeneous
fluid models may lead to a turbulence FRW cosmology. Both one-component and
two-component models from 4d inhomogeneous dark fluid models are considered. In
the one-component model the universe may develop from a viscous era with, for
instance, a constant bulk viscosity, into a turbulent era. In the two-component
model the fluid can be decomposed into two components, one non-turbulent
(ideal) and another turbulent part, obeying two different equations of state.
Conditions for the appearance of the turbulent dark energy universe in terms of
the parameters in the equation of state (EoS) without introducing the
turbulence concept explicitly are are obtained. An equivalent description in
terms of an inhomogeneous fluid for the viscous Little Rip (LR) cosmology is
also developed.
