Study of Al₂O₃/copper–water nanoparticle shape, slip effects, and heat transfer on steady physiological delivery of MHD hybrid nanofluid

Abstract

This paper contains the analytical investigation of magnetohydrodynamic (MHD) flow of copper/Al2O3–water hybrid nanofluid with unstable peristaltic motion. Three different geometries (bricks, cylinder, and platelets) along with velocity and thermal slip conditions are studied in detail to reach the precise solution. Flow geometry of a non-uniform tube of finite length, experimental values of base fluid, and considered nanoparticles are taken into account to examine the theoretical investigation of formulated equations. Dimensionless control equations, which are subject to physically realistic boundary conditions, are closely studied to obtain precise results. The shape effects of nanoparticles on velocity, temperature distribution, and heat transfer on the length of the non-uniform tube with variation of the various flow parameters are discussed in a graphical description to understand the theoretical aspects to validate the medical analysis. The observations from the analysis state that copper/Al2O3–water carry maximum velocity for smaller values of slip parameter. Temperature distributions for heat absorption parameter are more significant as fluid flow accelerates when large values are chosen. Large values of thermal slip parameter yield enhancement in pressure gradient and Cu–water nanofluid has higher impact than hybrid nanofluid. Platelet-shaped nanoparticles of hybrid nanofluid have more significant effect on pressure gradient than cylinder- and brick-shaped nanoparticles of Cu–water nanofluid. An intrinsic property of peristaltic transport (i.e., trapping) is also discussed. The trapped bolus decreases for platelets and cylinder-shaped nanoparticles, whereas, the size of the trapped bolus increases for brick-shaped nanoparticles. This model is applicable to a drug delivery system and to design the micro-peristaltic pump for transporting nanofluids.

Dual Solutions and Stability Analysis of Magnetized Hybrid Nanofluid with Joule Heating and Multiple Slip Conditions

“…The MHD flow of a hybrid nanofluid in the presence of the slip condition was considered by Nadeem and Abbas [51], and they adopted the thermophysical properties of Devi and Devi [23,24] to solve the system of ordinary differential equations (ODEs). Using the same properties, Iftikhar et al [52] also investigated the steady MHD flow of hybrid nanofluid with the slip condition. Based on published literature, it can be concluded that the thermophysical properties of Devi and Devi have been used broadly, as these properties match with the experimental results.…”

Heat Transfer Analysis over the Boundary Layer Stagnation-Point Flow of Couple Stress Fluid over an Exponentially Stretching Sheet

“…From Figure 1 it is observed that the convergence region decreases with the increasing deviation of ε from 1. The convergence region for shrinking sheet case with 0.25 From these plots it is observed that with increase in both Pr and λ the convergence region decreases [36][37][38][39][40][41]. The influence of different involved parameters over velocity and temperature profiles is sketched in Figures 4-7.…”

Flow of a Williamson Fluid over a Stretching Sheet Containing Nanoparticles

“…The acquire pair of non-linear partial differential equations is transformed from similarity transformation into ODEs along with suitable boundary conditions is numerically solved with help shooting technique by the assistance of Runge-Kutta method [35][36][37]. Now implementing shooting method iterative process in MATLAB coding to approach the approximate solution and based on that we work out for satisfactory IVP that gives the appropriate answer of solution for initially determine BVP for the fluid model and discuss the solution with help of graphical representation and tabular form [38][39][40].…”