A numerical investigation of bio-convective electrically conducting water-based nanofluid flow on the porous plate with variable wall temperature

Abstract

There is a awakening interest in applying bioconvective nanofluids in permeable media. As such, this article aims to numerically investigate boundary layer flow over a plate embedded in a porous medium filled with nanofluid with motile gyrotactic microorganisms. Consequence, mass and heat transmission efficiency in engineering, technological, and industrial domains is improved. Thus, heat and mass transmission with impacts of radiation and activation energy on the horizontal porous plate are analyzed with microorganisms. Ordinary differential equations are established from nonlinear leading Partial Differential Equations by implementing similarity variables. After that, the resultant ordinary differential equations are numerically tackled employing the BVP4C method, build-in package of MATLAB. From tables, it is evident that when the velocity parameter is one, skin friction is zero, which exhibits no opposition at the fluid-solid surface. The impacts of pertinent parameters upon nondimensional boundary layer outlines are deliberated. It is worth mentioning here that the impact of the magnetic field parameter () on velocity is drawn, and the graph depicts that the velocity is diminished by increasing the value of the magnetic parameter. It is because when the magnetic field is given perpendicular to the liquid’s surface, the generated magnetic impact causes the liquid to flow with a resistive form of force, which reduces its speed for the solutal resistance is increased by activation energy but decreased by Lewis number and chemical reaction constant Finally, current inquiry can helpfully enhance thermal conductivity, viscosity, convective heat transmission, and thermal diffusivity linked to those base fluids. The current investigation reveals that the Lewis number and chemical reaction constant tend to decay thickness of concentration boundary layer.