Numerical Study on Nanoparticles Aggregation with Brownian Motion in Fluid Flow Induced by Squeezing Porous Slider

A comprehensive understanding of the behaviour of nanoparticles in a fluid flow may be necessary to design more efficient medication delivery devices. The behaviour of nanofluids in a variety of environments, including those affected by magnetic fields and temperature gradients, may have an impact on the targeted distribution of medications inside the body. The three-dimensional nanofluid flow via an expanding/contracting permeable slider with the consequence of magnetic field, thermophoresis and Brownian motion is explored in this study. The quantity of liquid injected to make the slider levitate is not constant; instead, it changes over time according to where the slider is at any given moment. The time-dependent governing partial differential equations (PDEs) are transformed to ordinary differential equations (ODEs) with the aid of similarity variables. Runge Kutta Fehlberg's fourth-fifth-order (RKF-45) methodology is utilized to solve the resulting ODEs numerically. It is discovered that the reverse effect of slider contraction is seen when flat slider expansion results in the suppression of lift and drag. The velocity profile is decreased with an upsurge in the magnetic and wall-dilation parameters. The rise in Brownian motion and thermophoretic parameters improves the heat transfer. The rise in Brownian motion and thermophoretic parameters declines the concentration profile.