Abstract

In this article, we have obtained some exact solutions of the Einstein field equations with time-varying in existence of bulk viscosity in Bianchi type-V cosmological models. We have taken cosmic matter which follows a bar tropic equation of state. We see that the role of deceleration parameter $(q)$ is important to describe the different phases of the universe. Finally, we conclude that universe decelerates due to positive value of q while universe accelerates due to negative value of $q$. Some physical properties and behaviors of parameters on the solutions of field equations are discussed in this paper.

Keywords and Phrases

Bianchi Type–V, Constant Deceleration Parameter, Hubble's parameter, cosmological constant.

A.M.S. subject classification

83C15, 83F05.

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