Alexandria Engineering Journal (Mar 2022)
Thermo-bioconvectional transport of magneto-Casson nanofluid over a wedge containing motile microorganisms and variable thermal conductivity
Abstract
Nanofluid is one of the wide elaborate technologies in thermal engineering sectors due to its broad solicitations such as, heat exchanger, treatment of cancer, heat storage devices, biomedicine, biotechnology, which is utilized to develop the heat transport rate of heat storage in different devices. Improvement of thermal conductivity using nanoparticles is one of the challenges in these implementations of nanofluids. The aim of this scrutiny is to illustrate bio convectional 2D Casson flow of nanofluid in the existence of swimming gyrostatic microorganisms over stretching wedge. Brownian and thermophoritic diffusions are employed. Influences of thermal radiation, variable thermal conductivity, activation energy with thermal and solutal Robin conditions are taken into account. The conversion of formulated nonlinear system of partial differential equations (PDE’s) into structure of ordinary differential equations (ODE’s) is done through suitable dimensionless variables. The rendered governing coupled equations are computed numerically by using the bvp4c technique. The spectacular effects of interesting numbers against the velocity, the temperature, the concentration and the microorganism fields are analyzed in detail and elaborated through figures. Key outcomes are mentioned. From this analysis, it is noted that solid particles improve the thermal efficiency of base fluids. Velocity of liquid enhances via mixed convection parameter. Temperature distribution rises for larger thermophoresis parameter. The growing bioconvection Lewis number declines the concentration of microorganism. The current outcomes may help in industrial applications. The current work has many implementations in different engineering fields, biotechnology, nanotechnology and medical sciences.
