Inhomogeneous viscous fluids in FRW universe and finite-future time singularities

Abstract

We consider inhomogeneous viscous fluids in flat Friedmann-Robertson-Walker universe. We analyze different kinds of such fluids and investigate the possibility to reproduce the current cosmic acceleration providing a different future evolution with respect to the Cosmological Constant case. In particular, we study the presence of finite-future time singularities. We also discuss a general class of "integrable" viscous fluid models whose bulk viscosities obey to a common differential equation.

14 pages, final version, accepted for publication in Astrophys.Space Sci

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• Viscous Fluid Holographic Bounce
• Constraining $f(Q,L_m)$ gravity with bulk viscosity
• Viscous Coupled Fluids in Inflationary Cosmology
• Kaluza-Klein bulk viscous fluid cosmological models and the validity of the second law of thermodynamics in $f(R,T)$ gravity
• Inhomogeneous viscous fluids for inflation
• The effect of thermal radiation on singularities in the dark universe
• Inhomogeneous Dark Fluid and Dark Matter, Leading to a Bounce Cosmology
• On the Expanding Phase of a Singular Bounce and Intermediate Inflation: The Modified Gravity Description
• Holographic representation of the unified early and late universe via a viscous dark fluid
• Scalar field unification of interacting viscous dark fluid from a geometrical scalar-tensor theory of gravity
• Holographic description of the dissipative model of universe with curvature