OICC Press Journal of Theoretical and Applied Physics 2251-7235 6 1 2023 11 17 Kaluza-Klein interacting cosmic fluid cosmological model 10.1186/2251-7235-6-33 EN Kishor S Adhav Sant Gadge Baba Amravati University Meena V Dawande Sant Gadge Baba Amravati University Soniya M Borikar Sant Gadge Baba Amravati University Journal Article 2023 11 17 AbstractIn this paper, we have presented a power law scaling Kaluza-Klein cosmological model dominated by two interacting perfect fluid components during expansion. Barotropic equations of state for pressure and density are considered to get determinate solutions of the field equations. We have shown that the components are not conserved separately because of mutual interaction between the two fluids, and the energy densities are proportional to 1t2.