Chemically reactive water-based carbon nanotubes flow saturated in Darcy-Forchheimer porous media coupled with entropy generation

[Display omitted] •Magnetized water-based carbon nanotubes flow is investigated.•Chemical reactive flow is flowing through Darcy-Forchheimer porous space.•Entropy generation volumetric rate relation is modeled.•The numeric solutions through shooting scheme are executed. This investigation described the features of magnetized water-based carbon nanotubes in slip flow saturated through Darcy-Forchheimer porous space. Cattaneo and Christov heat diffusion relation is used for the modeling of energy equation. Chemical reaction and heat generation influences are accounted. The entropy generation (EG) volumetric rate relation is modeled. The Fehlberg numerical scheme is implemented for the construction of the solutions. The results revealed that the EG is augmented in the presence of magnetic field and porosity parameter but decays against solid volume fraction of nanoparticles for both SWCNTs (single-wall carbon nanotubes) and MWCNTs (multi-wall carbon nanotubes).