Numerical study of axisymmetric magneto-gyrotactic bioconvection in non-Fourier tangent hyperbolic nano-functional reactive coating flow of a cylindrical body in porous media

Modern functional nanomaterials coating processes feature an increasing range of intelligent properties including rheology, biological (bio-inspired) modifications, elaborate thermophysical behaviour and complex chemical reactions which are needed for the precise synthesis bespoke designs. Such manufacturing flow extremely involve both heat multiple mass transfer (species diffusion) phenomena. Intelligent nano-coatings particularly attractive since they exploit magnetic nanoparticles can be manipulated by external fields. Recently, Boeing Aerospace have explored use micro-organisms aircraft coatings. Mathematical models provide excellent analysis elucidating response characteristics such dynamics processes. With this motivation, present is indented to develop a new mathematical model examine axisymmetric, magnetohydrodynamic, chemically reactive, gyrotactic bioconvection tangent hyperbolic nanofluid past cylinder saturated with Darcy porous medium, as smart-coating enrobing flow. The influence Cattaneo–Christov flux (non-Fourier thermal relaxation parameter), thermophoresis Brownian motion taken into consideration. steady-state, boundary layer, partial differential conservation equations rendered dimensionless via appropriate transformations, subsequent nonlinear, coupled, system governing numerically solved employing implicit Keller box method. impact various factors Hartmann number, Weissenberg viscoelastic parameter, Prandtl non-Fourier thermophoresis, motion, concentration difference variable, reaction, Peclet Schmidt number bio-convection on flow, transfer, motile density, local friction factor, rate, rate microorganism density wall gradient visualized graphically. Validation earlier studies included. Further validation finite element method (FEM) code (SMART-FEM) presented. Results reveal that upsurges amplifying number. Microorganism distribution non-Newtonian diminishes Magnifying power law index parameter reduces momentum layer thickness nanofluid, while there acceleration in fluid near surface cylinder. Local Sherwood rises higher values homogenous destructive reaction parameter. computations solid benchmark further CFD modelling.