Computational Analysis of Bioconvection of MoS2-SiO2-GO/H2O Ternary Hybrid Nanofluid Containing Gyrotactic Microorganisms over an Exponentially Stretching Sheet with Chemical Reaction

The focus of this paper is to investigate the bioconvection of MoS 2 -SiO 2 -GO/water ternary hybrid nanofluid containing motile gyrotactic microorganisms. The study is conducted on an exponentially stretching sheet, and factors such as nonlinear thermal radiation and magnetic field are taken into consideration. The fundamental PDEs governing the conservation aspects of hydro-thermal flow, nanoparticles, and gyrotactic microorganism concentration undergo suitable transformations to become non-dimensional ODEs with appropriate boundary conditions. Then, these resulting non-linear equations are solved numerically using Runge-Kutta-Fehlberg integration technique, coupled with shooting technique. Through a graphical investigation, the impact of numerous factors and their effects on velocity, temperature, nanoparticle concentration, rescaled density of gyrotactic microorganisms, local skin friction, Nusselt number, and Sherwood number is analyzed. The outcomes indicate that as Eckert number, radiation parameter, and Brownian motion parameter increase, the velocity and thermal profiles exhibit an upward trend, whereas the microorganisms and concentration profiles experience a decrease. Moreover, when shifting the value of bioconvection Lewis number from 2.0 to 3.0, the Local Nusselt number exhibits a 3.43% increase, while the local density motile number experiences a more notable enhancement of 26.32%. The outcomes from this study are observed to be relevant in the fields of biophysical science, ecological research, and engineering processes.