Nanofluid Containing Motile Gyrotactic Microorganisms Squeezed Between Parallel Disks

Advanced micro- and nanotechnologies for micro-/nano-electronic devices have made substantial advances in the past few years. These technologies are rapidly incorporating advanced fluid media such as nanofluids and biological microorganisms. Motivated by bio-nanofluid applications in medical engineering, in this study, a mathematical model is evolved for unsteady bioconvective conducting nanofluid doped with gyrotactic microorganisms squeezed between parallel disks. The nano-bio transfer model is written as a series of nonlinear P-D-Es that are reduced into a set of similarity O-D-Es using suitable transforms. The dimensionless problem is solved utilising MATLAB bvp4c solver’s package to investigate the impact of the Hartman number, squeezing, Brownian motion, and thermophoresis parameters on motile microorganism velocity, temperature, and nanoparticle concentration. The Brownian motion and the thermophoresis factors of nanoparticles cause an increment in temperature profiles for both suction and injection. The resistive magnetic body force prevails in the core zone, resulting in a decrease in velocity.