Higher Dimensional Cosmological Models with Bulk Viscous Fluid

2015 ◽  
Vol 54 (8) ◽  
pp. 2652-2661 ◽  
Author(s):  
R. K. Tiwari ◽  
R. Singh
Keyword(s):  
Viscous Fluid ◽  
Cosmological Models ◽  
Bulk Viscous Fluid ◽  
Higher Dimensional ◽  
Bulk Viscous

Bianchi types I and V bulk viscous fluid cosmological models in f(R, T) gravity theory

Open Physics ◽  
2014 ◽  
Vol 12 (10) ◽  
Author(s):  
Shri Ram ◽  
Priyanka Kumari
Keyword(s):  
Viscous Fluid ◽  
Cosmological Models ◽  
Gravity Theory ◽  
Field Equations ◽  
Bulk Viscous Fluid ◽  
Bulk Viscous ◽  
Special Value ◽  
The Universe ◽  
Average Scale Factor ◽  
Bianchi Types

AbstractIn this paper we present non-singular Bianchi types I and V cosmological models, in the presence of bulk viscous fluid and within the framework of f(R,T) gravity theory. Exact solutions to the field equations are obtained by choosing a particular form of the function f(R,T) and a special value for the average scale factor of the model, which corresponds to a time- dependent deceleration parameter. The cosmological models initially accelerate for a certain period of time and thereafter decelerate. The physical and kinematical properties of the models of the universe are discussed.

scholarly journals A New Class of Brans - Dicke Cosmological Models with Causal Viscous Fluid

1997 ◽  
Vol 50 (5) ◽  
pp. 903 ◽  
Author(s):  
G. P. Singh ◽  
A S. G. Ghosh ◽  
Aroonkumar Beesham
Keyword(s):  
Viscous Fluid ◽  
Nonequilibrium Thermodynamics ◽  
Cosmological Solution ◽  
Cosmological Models ◽  
Fluid Source ◽  
New Class ◽  
Bulk Viscous Fluid ◽  
Bulk Viscous ◽  
Friedmann Robertson Walker

The behaviour of solutions to the Brans–Dicke equations of Friedmann–Robertson–Walker models with bulk viscous fluid source described by full (i.e. non-truncated) causal nonequilibrium thermodynamics is investigated. A new class of cosmological solution is obtained for all spatial sections (k = 0, ± 1).

scholarly journals PLANE-SYMMETRIC INHOMOGENEOUS BULK VISCOUS COSMOLOGICAL MODELS WITH VARIABLE Λ

2003 ◽  
Vol 12 (05) ◽  
pp. 941-951 ◽  
Author(s):  
ANIRUDH PRADHAN ◽  
HARE RAM PANDEY
Keyword(s):  
Cosmological Model ◽  
Viscous Fluid ◽  
Cosmological Constant ◽  
Ad Hoc ◽  
Fluid Distribution ◽  
Geometric Features ◽  
Plane Symmetric ◽  
Bulk Viscous Fluid ◽  
Variable Λ ◽  
Bulk Viscous

A plane-symmetric non-static cosmological model representing a bulk viscous fluid distribution has been obtained which is inhomogeneous and anisotropic and a particular case of which is gravitationally radiative. Without assuming any ad hoc law, we obtain a cosmological constant as a decreasing function of time. The physical and geometric features of the models are also discussed.

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