Bianchi type III string cosmological model with bulk viscosity

The Bianchi type III cosmological model for a cloud string with bulk viscosity are presented. To obtain a determinate model, an equation of state p = klambda and a relation between metric potentials B = C-n are assumed. The physical and geometric aspects of the model are also discussed. The model describes a shearing non-rotating continuously expanding universe with a big-bang start, and the relation between the coefficient of bulk viscosity and the energy density is zeta proportional to rho(1/2).