Thermodynamics of second-grade nanofluid over a stretchable rotating porous disk subject to Hall current and cubic autocatalysis chemical reactions

Homogeneous–heterogeneous chemical reactions for second-grade nanofluid and gyrotactic microorganisms in a rotating system with the effects of magnetic fields thermal radiation are examined. The boundary layer equations problem non-dimensional form evaluated by strong technique, namely, homotopy analysis method (HAM). rates flow, heat, mass, microorganism motion obtained augmentations pertinent parameters. graphical pictures results described physical significance. Hall current effect decreases azimuthal velocity, axial velocity increases injection Biot number leads to enhanced heat transfer microorganisms, concentration diffusion rate Peclet number, reaction reduces Schmidt number. Excellent agreement present work is found previously published work. study has applications hydromagnetic lubrication, semiconductor crystal growth control, austrophysical plasmas, storage disks, computer devices, care maintenance turbine engines, aeronautical, mechanical, architectural engineering, metallurgy, polymer industry, flows porous media, food processing preservation processes.