• M.Vijaya Santhi
• K.V.M.Vara Kumar
• T.Chinnappalanaidu
• Daba Meshesha Gusu

In this paper, we have investigated LRS Bianchi type-I universe in the presence of pressureless dark matter and bulk viscous fluid of dark energy within the framework of general relativity. To find the solution of Einstein’s field equations, we assumed that the deceleration parameter as linear function of Hubble parameter. Under this specification, we obtain the non-singular solution of LRS Bianchi type-I model depending upon the particular choice of the value of parameters. The cosmological implications of the model including the evolution of effective EoS parameter of bulk viscous dark energy, energy densities and bulk viscous coefficient ζ are investigated. It is shown that depending on the parameters of bulk viscous coefficient ζ, the bulk viscous dark energy model can behave as a quintessence or phantom dark energy. We have also studied the statefinder parameter of r-s plane to characterize different phases of the evolution of the universe and our result is completely agree with the ΛCDM prediction in late time. The physical and geometric properties of the cosmological model are also well discussed. Therefore, the bulk viscosity of dark energy plays very important role in the accelerated expansion history of the universe.

LRS Bianchi type-I. Bulk viscous fluid. Dark energy. deceleration parameter

"LRS BIANCHI TYPE-I BULK VISCOUS DARK ENERGY COSMOLOGICAL MODEL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 1, page no.a556-a564, January-2022, Available :http://www.jetir.org/papers/JETIR2201074.pdf

"LRS BIANCHI TYPE-I BULK VISCOUS DARK ENERGY COSMOLOGICAL MODEL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 1, page no. ppa556-a564, January-2022, Available at : http://www.jetir.org/papers/JETIR2201074.pdf