Numerical investigation of thermal radiation effects on chemical reactive flow of microbes in hybrid nanofluid over a rotating disk

Abstract

This study employs numerical modelling to investigate the outcome of thermal radiation on chemical reactive flow of a hybrid nanofluid along a disk with oxytactic and gyrotactic microbes are examined. The heat generation and Stefan blowing impacts are taken into account. The hybrid (Diamond $-C{o}_3{O}_4/H_{2}O$) nanofluid flow model contains of nanoparticles of diamond $\left(ND\right)$, Cobalt oxide ($C{o}_3{O}_4)$ dissolved in water. The constitutive equations, encompassing the solutal, energy, momentum, and gyrotactic microbes’ equations, are formulated and converted using the similarity approximation into a system of partial differential equations (PDEs). These resulting equations are then mathematically solved utilizing the Bvp4c method. There are many uses for the proposed model in the domains of engineering, biomedicine, and industry. Increased heat transmission is essential in the design of thermal management systems, such as cooling mechanisms in microelectronics. The study helps to understand fluid flow dynamics in lab-on-a-chip devices and biosensors in the biomedical industry. Microorganisms in the hybrid nanofluid flow also provide information about bioconvection processes, which is pertinent to microbial fuel cells and wastewater treatment. Additionally, the rotating disk configuration and Marangoni convection principles ensure accuracy and efficiency in industrial operations like coating technologies, thin-film deposition, and crystal growth.