Thermal analysis of 3D Darcy–Forchheimer flow of SWCNT–MWCNT/sodium alginate on Riga plate

The theme of this work is to investigate the heat transfer assessment of three-dimensional flow of magnetized Casson hybrid nanofluid through a rotating permeable Riga plate using Darcy–Forchheimer model. The comparative analysis between thermal conductivity model of Hamilton-Crosses, Xue and Yamada-Ota model is also presented. The hybrid nanofluid is the combination of nanoparticles single-walled carbon nanotubes and multi-walled carbon nanotubes which are suspended in base fluid sodium alginate. The flow and heat transfer behavior of working fluid are influenced by the slip velocity, convective heating, viscous dissipation. The solution of existing nonlinear partial differential equations of three-dimensional flow of Casson hybrid nanofluid is obtained by employing the bvp4c command of MATLAB. For the validation of our code and numerical results, a comparison is made with existing results. From the numerical outcomes, it is observed that increasing axial slip parameter, the thermal boundary layer decreases which reveal that the thermal conductivity model of Yamada-Ota hybrid nanofluid is superior to that of Hamilton Crosser and Xue model. Moreover, Hybrid nanofluids also show an improvement in the axial and transverse velocity components as the magnitude of buoyancy parameter and Hartmann number increase. These findings may provide the valuable insights for the fields of geothermal engineering, energy conservation, and nuclear waste disposal.