Effect of nonuniform magnetic field on thermal performance of nanofluid flow in angled junction

Magnetohydrodynamic analysis of the nanofluid flow is extremely noteworthy in industrial applications. This study investigates the application of the nonhomogeny magnetic source on the migration of fluid with nanoparticles within the angled junction. In this work, Ferro particles are injected into the water flow to intensify the influence of the FHD on nanomaterial flow. To perform computational study on nanofluid in the junction, the FVM with SIMPLEC model was selected. According to our results, the existence of the nonhomogeny magnetic field produces the circulation in the vicinity of the junction and decreases the mineral sedimentation on the junction wall. In existence of two magnetic sources, Nu augments by 20% when the Reynolds number of nano flow is augmented from 50 to 100. When results of four sources of nonhomogeny FHD sources are compared with that of two magnetic sources, it is detected that the mean Nusselt number approximately increases 57 % inside the domain.

Computation of electroconductive gyrotactic bioconvection under nonuniform magnetic field: Simulation of smart bio-nanopolymer coatings for solar energy

The water-based bioconvection of a nanofluid containing motile gyrotactic micro-organisms (moves under the effects of gravity) over a nonlinear inclined stretching sheet in the presence of a nonuniform magnetic field has been investigated. This regime is encountered in the bio-nanomaterial electroconductive polymeric processing systems currently being considered for third-generation organic solar coatings, anti-fouling marine coatings, etc. Oberbeck–Boussinesq approximation along with ohmic dissipation (Joule heating) is considered in the problem. The governing equations of the flow are nonlinear partial differential equations and are converted into ordinary differential equations via similarity transformations. These equations are then solved by the Finite Element Method. The effect of various important parameters on nondimensional velocity, temperature distribution, nanoparticle concentration, the density of motile micro-organisms is analyzed graphically in detail. It is observed from the obtained results that the flow velocity decreases with rising angle of inclination [Formula: see text] while temperature, nanoparticle’s concentration and density of motile micro-organisms increase. The local skin friction coefficient, Nusselt number, Sherwood number, motile micro-organism’s density number are calculated. It is noticed that increasing the Brownian motion and thermophoresis parameter leads to an increase in temperature of fluid which results in a reduction in Nusselt number. On the contrary, the Sherwood number rises with an increase in Brownian motion and thermophoresis parameter. Also, interesting features of the flow dynamics are elaborated and new future pathways for extension of the study identified in bio-magneto-nano polymers (BMNPs) for solar coatings.