Thermal examination for the micropolar gold–blood nanofluid flow through a permeable channel subject to gyrotactic microorganisms

Abstract

Presently, scientists across the world are carrying out theoretical and experimental examinations for describing the importance of nanofluids in the heat transfer phenomena. Such fluids can be obtained by suspending nanoparticles in the base fluid. Experimentally, it has proved that the thermal characteristics of nanofluids are much better and more appealing than those of traditional fluids. The current study investigates the heat transfer for the flow of blood that comprises micropolar gold nanoparticles. The influence of chemically reactive activation energy, thermophoresis, thermal radiations, and Brownian motion exists between the walls of the channel. A microorganism creation also affects the concentration of nanoparticles inside the channel. Suitable transformation has been used to change the mathematical model to its dimensionless form and then solve by using the homotopy analysis method. In this investigation, it has been revealed that the linear velocity behavior is two-folded over the range 0≤η≤1. The flow is declining in the range 0≤η≤0.5, whereas it is augmenting upon the range 0.5≤η≤1. Thermal characteristics are supported by augmentation in volumetric fraction, thermophoresis, radiation, and Brownian motion parameters while opposed by the Prandtl number. The concentration of the fluid increases with augmentation in activation energy parameters and decays with an increase in thermophoresis, Brownian motion, chemical reaction parameters, and the Schmidt number. The density of microorganisms weakens by growth in Peclet and bioconvection Lewis numbers.

Numerical analysis of slip-enhanced flow over a curved surface with magnetized water-based hybrid nanofluid containing gyrotactic microorganisms

“…Heat transfer in nanofluid flow is a phenomenon where the enhanced thermal conductance and altered flow features of nanofluids are harnessed to improve the efficiency of heat exchange processes 4 . Khan et al 5 inspected nanofluid flow through a porous conduit with impacts of microorganisms and noted that velocity panel declined and thermal panels escalated for higher porosity factor and nanoparticles’ concentration. Varun Kumar 6 inspected a theoretical model for investigating nanoliquid flow on a stretched surface using influence of chemical reactivity and magnetic field.…”