Summary: We have obtained and presented spatially homogeneous Bianchi types II, VIII, and IX string cosmological models with bulk viscosity in a theory of gravitation proposed by D. K. Sen
[Z. Phys. 149, 311–323 (1957; Zbl 0078.19501
)] based on Lyra’s geometry [G. Lyra
, Math. Z. 54, 52–64 (1951; Zbl 0042.15902
)]. It is observed that only vacuum cosmological model exists in case of Bianchi type IX universe. Some physical and geometrical properties of the models are also discussed.