String LRS Bianchi type I universe with functional relation on Hubble parameter

LRS Bianchi Type I cosmological models for cloud string is explored. The cosmological script has considered while selecting a Hubble Parameter H based functional relation which produces cosmological model begin decelerating expansion and then enter into accelerating phase at a later time. The cosmological parameters have also identified such as the average Hubble parameter, the shear scalar, the scalar expansion, the string tension density, and the string energy density. The massive scalar field from the model has also been obtained. The above physical quantities are also discussed in great detail.