Bulk Viscous Fluid in Bianchi Type-I Cosmological Model

Abstract

In this paper, we have studied Bianchi type-I cosmological model with Bulk viscous fluid and time dependent cosmological term .To determine the exact solution of Einstein field equations we have assumed that anisotropy σ/θ per unit expansion scalar θ is proportional to a function of scale factor (a) i.e. { (σ/θ)/θ ∝1/aⁿ} (IJTP,54, 2015). The bulk viscous coefficient ξ is obtained for different cases .All physical parameters are calculated and discussed in detail.