TILTED BIANCHI TYPE-V BAROTROPIC FLUID COSMOLOGICAL MODELS WITH VARIABLE BULK VISCOSITY IN GENERAL RELATIVITY

被引：0

作者：

Bali, Raj ^{[1
]}

Kumawat, Pramila ^{[1
]}

Sharma, Shalini ^{[1
]}

机构：

[1] Univ Rajasthan, Dept Math, Jaipur 302055, Rajasthan, India

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2011年 / 26卷 / 24期

关键词：

Bianchi V; barotropic; heat conduction; bulk viscosity; VISCOUS-FLUID; STIFF FLUID; QUALITATIVE-ANALYSIS; PERFECT FLUID; HEAT-FLUX; UNIVERSE; FLOW;

D O I：

10.1142/S0217751X11054462

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Tilted Bianchi type-V barotropic fluid cosmological models with heat conduction and variable bulk viscosity is investigated. To get the deterministic model of the universe, we have assumed two conditions: (i) A = (BC)(n) and (ii) zeta theta = const where A, B, C are metric potentials, n is a constant, zeta the coefficient of bulk viscosity, theta the expansion in the model. The behavior of the model in presence and absence of bulk viscosity and singularities in the model are discussed. Some thermodynamic relations and physical aspects of the model related to the observation on the present day universe are also discussed.

引用

页码：4299 / 4310

页数：12

共 33 条

[1]

[Anonymous], 1975, J. Exp. Theor. Phys.

[2] VISCOUS-FLUID UNIVERSE FILLED WITH STIFF FLUID IN GENERAL-RELATIVITY [J].